| Date | Market | Station | Channel | Prior affiliation | New affiliation | Notes | Source |
| January 1 | Cedar Rapids, Iowa | KGAN | 2.2 | GetTV | Fox | On January 1, KGAN began simulcasting KFXA for a one-month transitional period as Sinclair consolidated Fox affiliates in duopoly markets from their shell corporations to directly owned stations; GetTV concurrently moved to KGAN's third digital subchannel. | |
| January 1 | Cedar Rapids, Iowa | KGAN | 2.3 | Comet | GetTV | On January 1, KGAN began simulcasting KFXA for a one-month transitional period as Sinclair consolidated Fox affiliates in duopoly markets from their shell corporations to directly owned stations; GetTV concurrently moved to KGAN's third digital subchannel. | |
| January 1 | Charleston, West Virginia | WCHS-TV | 8.2 | Antenna TV | Fox | On January 1, WCHS-TV began simulcasting WVAH-TV for a one-month transitional period; Antenna TV concurrently moved to a new third digital subchannel of WCHS-TV. | |
| January 1 | Columbus, Ohio | WSYX | 6.3 | Antenna TV | Fox | On January 1, WSYX began simulcasting WTTE for a one-month transitional period; Antenna TV concurrently moved to a new fourth digital subchannel of WSYX. | |
| January 1 | Dayton, Ohio | WKEF | 22.2 | Stadium | Fox | WKEF-DT2 disaffiliated from Stadium on January 1; it concurrently began simulcasting sister station WRGT-TV for a one-month transitional period. | |
| January 1 | Idaho Falls–Pocatello, Idaho | KIDK | 3.1 | CBS | Dabl | In December 2020, VistaWest Media LLC, owner of KIDK, announced that most of the station's CBS network and syndicated programing, and local newscasts from its KIDK Eyewitness News 3 operation would be transferred to the DT2 subchannel of News-Press & Gazette Company-owned ABC affiliate and SSA partner KIFI-TV on January 1. KIDK would concurrently switch to Dabl, while Telemundo programming displaced from KIFI-DT2 would transfer to a new DT5 subchannel on that station. | |
| January 1 | Idaho Falls–Pocatello, Idaho | KIFI-TV | 8.2 | Telemundo | CBS | In December 2020, VistaWest Media LLC, owner of KIDK, announced that most of the station's CBS network and syndicated programing, and local newscasts from its KIDK Eyewitness News 3 operation would be transferred to the DT2 subchannel of News-Press & Gazette Company-owned ABC affiliate and SSA partner KIFI-TV on January 1. KIDK would concurrently switch to Dabl, while Telemundo programming displaced from KIFI-DT2 would transfer to a new DT5 subchannel on that station. | |
| January 1 | Port Arthur-Beaumont, Texas | KFDM | 6.3 | Charge! | Fox | KFDM-DT3 disaffiliated from Charge! on December 31, 2020; on January 1, the subchannel began simulcasting Fox-affiliated SSA partner KBTV-TV for a one-month transitional period. | |
| January 1 | Santa Barbara-Santa Maria, California | KCOY-TV | 11.1 | CBS | Dabl | In December 2020, the News-Press & Gazette Company, owner of KCOY-TV, announced that the station's CBS network and syndicated programming and its local newscasts would be transferred to the DT2 subchannel of its ABC-affiliated sister station KEYT-TV on January 1.. KCOY became affiliated with Dabl, relocating the diginet from its discontinued DT4 subchannel. To make room for the former KCOY intellectual unit on its DT2 feed, KEYT-DT3—previously affiliated with Bounce TV—adopted a news rebroadcast format with MyNetworkTV programming airing weeknights. | |
| January 1 | Santa Barbara-Santa Maria, California | KEYT-TV | 3.2 | MyNetworkTV | CBS | In December 2020, the News-Press & Gazette Company, owner of KCOY-TV, announced that the station's CBS network and syndicated programming and its local newscasts would be transferred to the DT2 subchannel of its ABC-affiliated sister station KEYT-TV on January 1.. KCOY became affiliated with Dabl, relocating the diginet from its discontinued DT4 subchannel. To make room for the former KCOY intellectual unit on its DT2 feed, KEYT-DT3—previously affiliated with Bounce TV—adopted a news rebroadcast format with MyNetworkTV programming airing weeknights. | |
| January 1 | Santa Barbara-Santa Maria, California | KEYT-TV | 3.3 | Bounce TV | MyNetworkTV | In December 2020, the News-Press & Gazette Company, owner of KCOY-TV, announced that the station's CBS network and syndicated programming and its local newscasts would be transferred to the DT2 subchannel of its ABC-affiliated sister station KEYT-TV on January 1.. KCOY became affiliated with Dabl, relocating the diginet from its discontinued DT4 subchannel. To make room for the former KCOY intellectual unit on its DT2 feed, KEYT-DT3—previously affiliated with Bounce TV—adopted a news rebroadcast format with MyNetworkTV programming airing weeknights. | |
| February 1 | Dothan, Alabama | WDHN | 18.4 | Cozi TV | Antenna TV | Nexstar Media Group continues the process it launched in the fall of 2020 of phasing out subchannel carriage agreements with Cozi and MeTV, competitors in the classic television subchannel space, in order to increase exposure and publicity for Antenna TV on its existing stations, which it acquired in 2019 as part of the Tribune Broadcasting merger. | |
| February 1 | Terre Haute, Indiana | WTWO | 2.4 | Cozi TV | Antenna TV | Nexstar Media Group continues the process it launched in the fall of 2020 of phasing out subchannel carriage agreements with Cozi and MeTV, competitors in the classic television subchannel space, in order to increase exposure and publicity for Antenna TV on its existing stations, which it acquired in 2019 as part of the Tribune Broadcasting merger. | |
| February 1 | Monroe, Louisiana | KARD-TV | 14.4 | Cozi TV | Antenna TV | Nexstar Media Group continues the process it launched in the fall of 2020 of phasing out subchannel carriage agreements with Cozi and MeTV, competitors in the classic television subchannel space, in order to increase exposure and publicity for Antenna TV on its existing stations, which it acquired in 2019 as part of the Tribune Broadcasting merger. | |
| February 1 | Joplin, Missouri | KSNF | 16.4 | Cozi TV | Antenna TV | Nexstar Media Group continues the process it launched in the fall of 2020 of phasing out subchannel carriage agreements with Cozi and MeTV, competitors in the classic television subchannel space, in order to increase exposure and publicity for Antenna TV on its existing stations, which it acquired in 2019 as part of the Tribune Broadcasting merger. | |
| February 1 | Amarillo, Texas | KAMR-TV | 4.4 | Cozi TV | Antenna TV | Nexstar Media Group continues the process it launched in the fall of 2020 of phasing out subchannel carriage agreements with Cozi and MeTV, competitors in the classic television subchannel space, in order to increase exposure and publicity for Antenna TV on its existing stations, which it acquired in 2019 as part of the Tribune Broadcasting merger. | |
| February 1 | Wichita Falls, Texas | KFDX-TV | 3.4 | Cozi TV | Antenna TV | Nexstar Media Group continues the process it launched in the fall of 2020 of phasing out subchannel carriage agreements with Cozi and MeTV, competitors in the classic television subchannel space, in order to increase exposure and publicity for Antenna TV on its existing stations, which it acquired in 2019 as part of the Tribune Broadcasting merger. | |
| February 1 | Charleston, West Virginia | WVAH-TV | 11.1 | Fox | Decades | In December 2020, Sinclair Broadcast Group—which operates the station through Cunningham Broadcasting—announced that most of WVAH's Fox network and syndicated programing, its 10:00 p.m. Eyewitness News newscast, and the "Fox 11" branding would transfer to the second subchannel of WCHS-TV beginning February 1, following a one-month transition period that began on January 1 as part of Sinclair's consolidation of Fox affiliates onto directly owned stations; the move ended WVAH's 34-year affiliation with Fox. After the transition, the station's main channel switched to the Weigel Broadcasting-owned Decades diginet. | |
| February 1 | Port Arthur–Beaumont, Texas | KBTV-TV | 4.1 | Fox | Dabl | In December 2020, Sinclair Broadcast Group—which operated the station through Deerfield Media—announced that KBTV would disaffiliate from Fox after 13 years ; the station switched to Dabl effective February 1, with its Fox network and syndicated programming, the 5:30 and 9:00 p.m. newscasts and the "Fox 4" branding being transferred to the third subchannel of KFDM on February 1, following a one-month transition period that began on January 1 as part of Sinclair's consolidation of Fox affiliates onto directly owned stations. Following this, KFDM becomes the second station in the Beaumont–Port Arthur market to maintain dual major network affiliations on its main channel and a digital subchannel. | |
| February 1 | Port Arthur–Beaumont, Texas | KBTV-TV | 4.5 | Dabl | Charge! | In December 2020, Sinclair Broadcast Group—which operated the station through Deerfield Media—announced that KBTV would disaffiliate from Fox after 13 years ; the station switched to Dabl effective February 1, with its Fox network and syndicated programming, the 5:30 and 9:00 p.m. newscasts and the "Fox 4" branding being transferred to the third subchannel of KFDM on February 1, following a one-month transition period that began on January 1 as part of Sinclair's consolidation of Fox affiliates onto directly owned stations. Following this, KFDM becomes the second station in the Beaumont–Port Arthur market to maintain dual major network affiliations on its main channel and a digital subchannel. | |
| February 2 | Cedar Rapids, Iowa | KGAN | 2.2 | GetTV | Fox | In December 2020, Sinclair Broadcast Group—which operates KFXA through Second Generation of Iowa, Ltd.—announced that the station would end its collective 33-year relationship with Fox. KFXA's Fox network and syndicated programming, its weekday 7:00 a.m. and nightly 9:00 p.m. newscasts and the "Fox 28" branding transferred to KGAN-DT2 on February 2, following a 33-day transition period that commenced on January 1 as part of Sinclair's consolidation of Fox affiliates onto directly owned stations; following the switch, GetTV programming moved from KFXA-DT2 to KGAN-DT3, Comet programming moved from KGAN-DT3 to the newly launched KFXA-DT5, and Dabl programming moved from KGAN-DT4 to KFXA's main channel. | |
| February 2 | Cedar Rapids, Iowa | KGAN | 2.3 | Comet | GetTV | In December 2020, Sinclair Broadcast Group—which operates KFXA through Second Generation of Iowa, Ltd.—announced that the station would end its collective 33-year relationship with Fox. KFXA's Fox network and syndicated programming, its weekday 7:00 a.m. and nightly 9:00 p.m. newscasts and the "Fox 28" branding transferred to KGAN-DT2 on February 2, following a 33-day transition period that commenced on January 1 as part of Sinclair's consolidation of Fox affiliates onto directly owned stations; following the switch, GetTV programming moved from KFXA-DT2 to KGAN-DT3, Comet programming moved from KGAN-DT3 to the newly launched KFXA-DT5, and Dabl programming moved from KGAN-DT4 to KFXA's main channel. | |
| February 2 | Cedar Rapids, Iowa | KFXA | 28.1 | Fox | Dabl | In December 2020, Sinclair Broadcast Group—which operates KFXA through Second Generation of Iowa, Ltd.—announced that the station would end its collective 33-year relationship with Fox. KFXA's Fox network and syndicated programming, its weekday 7:00 a.m. and nightly 9:00 p.m. newscasts and the "Fox 28" branding transferred to KGAN-DT2 on February 2, following a 33-day transition period that commenced on January 1 as part of Sinclair's consolidation of Fox affiliates onto directly owned stations; following the switch, GetTV programming moved from KFXA-DT2 to KGAN-DT3, Comet programming moved from KGAN-DT3 to the newly launched KFXA-DT5, and Dabl programming moved from KGAN-DT4 to KFXA's main channel. | |
| February 3 | Columbus, Ohio | WTTE | 28.1 | Fox | TBD | In December 2020, Sinclair Broadcast Group—which operates WRGT and WTTE through Cunningham Broadcasting—announced that both stations would end their 34-year relationship with Fox. In Dayton, WRGT's Fox network and syndicated programming, its weekday 7:00 a.m. and nightly 10:00 p.m. newscasts and the "Fox 45" branding transferred to WKEF-DT2 on February 4, following a 33-day transition period that commenced on January 1; following the switch, the part-time MyNetworkTV/Dabl affiliation moved to WRGT's main channel. In Columbus, WTTE's Fox and syndicated programming, its weekday 7:00 a.m. and nightly 10:00 p.m. newscasts and the "Fox 28" branding transferred to the third subchannel of WSYX-DT3 on February 3, following a 32-day transition period that commenced on January 1 as part of Sinclair's consolidation of Fox affiliates onto directly owned stations; afterward, WTTE switched to Sinclair's TBD diginet. | |
| February 3 | Columbus, Ohio | WTTE | 28.2 | TBD | Stadium | In December 2020, Sinclair Broadcast Group—which operates WRGT and WTTE through Cunningham Broadcasting—announced that both stations would end their 34-year relationship with Fox. In Dayton, WRGT's Fox network and syndicated programming, its weekday 7:00 a.m. and nightly 10:00 p.m. newscasts and the "Fox 45" branding transferred to WKEF-DT2 on February 4, following a 33-day transition period that commenced on January 1; following the switch, the part-time MyNetworkTV/Dabl affiliation moved to WRGT's main channel. In Columbus, WTTE's Fox and syndicated programming, its weekday 7:00 a.m. and nightly 10:00 p.m. newscasts and the "Fox 28" branding transferred to the third subchannel of WSYX-DT3 on February 3, following a 32-day transition period that commenced on January 1 as part of Sinclair's consolidation of Fox affiliates onto directly owned stations; afterward, WTTE switched to Sinclair's TBD diginet. | |
| February 4 | Dayton, Ohio | WRGT-TV | 45.1 | Fox | MyNetworkTV/Dabl | In December 2020, Sinclair Broadcast Group—which operates WRGT and WTTE through Cunningham Broadcasting—announced that both stations would end their 34-year relationship with Fox. In Dayton, WRGT's Fox network and syndicated programming, its weekday 7:00 a.m. and nightly 10:00 p.m. newscasts and the "Fox 45" branding transferred to WKEF-DT2 on February 4, following a 33-day transition period that commenced on January 1; following the switch, the part-time MyNetworkTV/Dabl affiliation moved to WRGT's main channel. In Columbus, WTTE's Fox and syndicated programming, its weekday 7:00 a.m. and nightly 10:00 p.m. newscasts and the "Fox 28" branding transferred to the third subchannel of WSYX-DT3 on February 3, following a 32-day transition period that commenced on January 1 as part of Sinclair's consolidation of Fox affiliates onto directly owned stations; afterward, WTTE switched to Sinclair's TBD diginet. | |
| February 4 | Dayton, Ohio | WRGT-TV | 45.2 | MyNetworkTV/Dabl | TBD | In December 2020, Sinclair Broadcast Group—which operates WRGT and WTTE through Cunningham Broadcasting—announced that both stations would end their 34-year relationship with Fox. In Dayton, WRGT's Fox network and syndicated programming, its weekday 7:00 a.m. and nightly 10:00 p.m. newscasts and the "Fox 45" branding transferred to WKEF-DT2 on February 4, following a 33-day transition period that commenced on January 1; following the switch, the part-time MyNetworkTV/Dabl affiliation moved to WRGT's main channel. In Columbus, WTTE's Fox and syndicated programming, its weekday 7:00 a.m. and nightly 10:00 p.m. newscasts and the "Fox 28" branding transferred to the third subchannel of WSYX-DT3 on February 3, following a 32-day transition period that commenced on January 1 as part of Sinclair's consolidation of Fox affiliates onto directly owned stations; afterward, WTTE switched to Sinclair's TBD diginet. | |
| February 4 | Dayton, Ohio | WRGT-TV | 45.5 | TBD | Stadium | In December 2020, Sinclair Broadcast Group—which operates WRGT and WTTE through Cunningham Broadcasting—announced that both stations would end their 34-year relationship with Fox. In Dayton, WRGT's Fox network and syndicated programming, its weekday 7:00 a.m. and nightly 10:00 p.m. newscasts and the "Fox 45" branding transferred to WKEF-DT2 on February 4, following a 33-day transition period that commenced on January 1; following the switch, the part-time MyNetworkTV/Dabl affiliation moved to WRGT's main channel. In Columbus, WTTE's Fox and syndicated programming, its weekday 7:00 a.m. and nightly 10:00 p.m. newscasts and the "Fox 28" branding transferred to the third subchannel of WSYX-DT3 on February 3, following a 32-day transition period that commenced on January 1 as part of Sinclair's consolidation of Fox affiliates onto directly owned stations; afterward, WTTE switched to Sinclair's TBD diginet. | |
| February 4 | Sioux City, Iowa | KMEG | 14.1 | CBS | Dabl | In January 2021, Sinclair Broadcast Group—which operated the station through Waitt Broadcasting—announced that KMEG would disaffiliate from CBS after 53 years, with its network and syndicated programming, local newscasts produced through its Siouxland News operation, as well as the "KMEG 14" branding being transferred to the DT3 subchannel of its co-owned Fox/MyNetworkTV affiliated station KPTH beginning February 4, another consolidation of Sinclair's major network affiliations onto directly owned stations. Both stations concurrently swapped their corresponding diginet affiliations with Dabl, TBD and Charge! on that date. | |
| February 4 | Sioux City, Iowa | KMEG | 14.2 | TBD | Charge! | In January 2021, Sinclair Broadcast Group—which operated the station through Waitt Broadcasting—announced that KMEG would disaffiliate from CBS after 53 years, with its network and syndicated programming, local newscasts produced through its Siouxland News operation, as well as the "KMEG 14" branding being transferred to the DT3 subchannel of its co-owned Fox/MyNetworkTV affiliated station KPTH beginning February 4, another consolidation of Sinclair's major network affiliations onto directly owned stations. Both stations concurrently swapped their corresponding diginet affiliations with Dabl, TBD and Charge! on that date. | |
| February 4 | Sioux City, Iowa | KPTH | 44.2 | Dabl | TBD | In January 2021, Sinclair Broadcast Group—which operated the station through Waitt Broadcasting—announced that KMEG would disaffiliate from CBS after 53 years, with its network and syndicated programming, local newscasts produced through its Siouxland News operation, as well as the "KMEG 14" branding being transferred to the DT3 subchannel of its co-owned Fox/MyNetworkTV affiliated station KPTH beginning February 4, another consolidation of Sinclair's major network affiliations onto directly owned stations. Both stations concurrently swapped their corresponding diginet affiliations with Dabl, TBD and Charge! on that date. | |
| February 4 | Sioux City, Iowa | KPTH | 44.3 | Charge! | CBS | In January 2021, Sinclair Broadcast Group—which operated the station through Waitt Broadcasting—announced that KMEG would disaffiliate from CBS after 53 years, with its network and syndicated programming, local newscasts produced through its Siouxland News operation, as well as the "KMEG 14" branding being transferred to the DT3 subchannel of its co-owned Fox/MyNetworkTV affiliated station KPTH beginning February 4, another consolidation of Sinclair's major network affiliations onto directly owned stations. Both stations concurrently swapped their corresponding diginet affiliations with Dabl, TBD and Charge! on that date. | |
| March 29 | Dallas, Texas | KTXA | 21.2 | MeTV | CBSN Dallas | In December 2020, Weigel Broadcasting completed its acquisition of Azteca América affiliates KAZD/Dallas and KYAZ/Houston from HC2 Holdings. On March 29, KAZD and KYAZ became MeTV owned and operation stations, as it shifts Azteca America programming to the stations' third subchannel. | |
| March 29 | Dallas, Texas | KAZD | 55.1 | Azteca América | MeTV | In December 2020, Weigel Broadcasting completed its acquisition of Azteca América affiliates KAZD/Dallas and KYAZ/Houston from HC2 Holdings. On March 29, KAZD and KYAZ became MeTV owned and operation stations, as it shifts Azteca America programming to the stations' third subchannel. | |
| March 29 | Houston, Texas | KPRC-TV | 2.2 | MeTV | Start TV | In December 2020, Weigel Broadcasting completed its acquisition of Azteca América affiliates KAZD/Dallas and KYAZ/Houston from HC2 Holdings. On March 29, KAZD and KYAZ became MeTV owned and operation stations, as it shifts Azteca America programming to the stations' third subchannel. | |
| March 29 | Houston, Texas | KYAZ | 51.1 | Azteca América | MeTV | In December 2020, Weigel Broadcasting completed its acquisition of Azteca América affiliates KAZD/Dallas and KYAZ/Houston from HC2 Holdings. On March 29, KAZD and KYAZ became MeTV owned and operation stations, as it shifts Azteca America programming to the stations' third subchannel. | |
| April 1 | Fresno, California | KFSN-TV | 30.3 | Laff | This TV | With Katz's carriage agreement with the ABC Owned Television Stations also running out, ABCOTS has since come to agreement with Allen Media Group to launch a revitalized This TV on those channel slots. | |
| April 1 | Houston, Texas | KTRK-TV | 13.3 | Laff | This TV | With Katz's carriage agreement with the ABC Owned Television Stations also running out, ABCOTS has since come to agreement with Allen Media Group to launch a revitalized This TV on those channel slots. | |
| April 1 | Los Angeles, California | KABC-TV | 7.3 | Laff | This TV | With Katz's carriage agreement with the ABC Owned Television Stations also running out, ABCOTS has since come to agreement with Allen Media Group to launch a revitalized This TV on those channel slots. | |
| April 1 | New York City, New York | WABC-TV | 7.3 | Laff | This TV | With Katz's carriage agreement with the ABC Owned Television Stations also running out, ABCOTS has since come to agreement with Allen Media Group to launch a revitalized This TV on those channel slots. | |
| April 1 | Philadelphia, Pennsylvania | WPVI-TV | 6.3 | Laff | This TV | With Katz's carriage agreement with the ABC Owned Television Stations also running out, ABCOTS has since come to agreement with Allen Media Group to launch a revitalized This TV on those channel slots. | |
| April 1 | Raleigh, North Carolina | WTVD | 11.3 | Laff | This TV | With Katz's carriage agreement with the ABC Owned Television Stations also running out, ABCOTS has since come to agreement with Allen Media Group to launch a revitalized This TV on those channel slots. | |
| April 1 | San Francisco, California | KGO-TV | 7.3 | Laff | This TV | With Katz's carriage agreement with the ABC Owned Television Stations also running out, ABCOTS has since come to agreement with Allen Media Group to launch a revitalized This TV on those channel slots. | |
| April 1 | Minneapolis, Minnesota | K33LN-D | 33.1 | Bounce TV | QVC | - | |
| April 1 | Minneapolis, Minnesota | K33LN-D | 33.2 | Court TV Mystery | HSN | - | |
| April 3 | Las Vegas, Nevada | KLAS-TV | 8.4 | Ion Television | Circle | | |
| April 5 | Indianapolis, Indiana | WISH-TV | 8.3 | True Crime Network | Twist | | |
| May 15 | Chicago, Illinois | WCPX-TV | 38.2 | Court TV Mystery | Bounce TV | WCIU launched the experimental MeTV Plus service over digital subchannels 26.5 on this date; ewplaxing Bounce TV, which had been carrying its programming simultaneously on Ion O&O WCPX-TV since February 28 and cedes its Chicago affiliation rights exclusively to that station with the switchover. | |
| May 15 | Chicago, Illinois | WCIU-TV | 26.5 | Bounce TV | MeTV Plus | WCIU launched the experimental MeTV Plus service over digital subchannels 26.5 on this date; ewplaxing Bounce TV, which had been carrying its programming simultaneously on Ion O&O WCPX-TV since February 28 and cedes its Chicago affiliation rights exclusively to that station with the switchover. | |
| May 17 | Lexington, Kentucky | WTVQ-DT | 36.4 | Laff | Twist | | |
| May 17 | Lexington, Kentucky | WTVQ-DT | 36.7 | Grit | QVC | | |
| June 7 | Charlotte, North Carolina | WJZY | 46.8 | Shop LC | QVC2 | | |
| June 7 | Tampa-St. Petersburg, Florida | WTSP | 10.2 | Antenna TV | Twist | | |
| June 7 | Tampa-St. Petersburg, Florida | WFTS-TV | 28.4 | Court TV | Court TV Mystery | | |
| June 7 | Tampa-St. Petersburg, Florida | WFTS-TV | 28.5 | QVC | HSN | | |
| July 5 | Burlington/Davenport, Iowa | KGCW | 26.4 | Bounce TV | CBS | | |
| August 2 | Cedar Rapids, Iowa | KCRG-TV | 9.3 | Antenna TV | The CW | As a result of the sale of KWWL to Allen Media Broadcasting due to the acquisition of the station's former owner Quincy Media by Gray Television, the owner of competitor KCRG-TV, The CW announced they move its affiliation from its second digital subchannel of KWWL to the third subchannel of KCRG-TV beginning August 2, after Start TV, Circle and Antenna TV diginets leaving the said station as well in the Cedar Rapids market, while the former joined the Weigel Broadcasting owned network Heroes & Icons. | |
| August 2 | Cedar Rapids, Iowa | KWWL | 7.2 | The CW | Heroes & Icons | As a result of the sale of KWWL to Allen Media Broadcasting due to the acquisition of the station's former owner Quincy Media by Gray Television, the owner of competitor KCRG-TV, The CW announced they move its affiliation from its second digital subchannel of KWWL to the third subchannel of KCRG-TV beginning August 2, after Start TV, Circle and Antenna TV diginets leaving the said station as well in the Cedar Rapids market, while the former joined the Weigel Broadcasting owned network Heroes & Icons. | |
| September 1 | Albany/Schenectady/Troy, New York | WXXA-TV | 23.4 | Bounce TV | Rewind TV | | |
| September 1 | Buffalo, New York | WNLO | 23.2 | Bounce TV | Rewind TV | | |
| September 1 | Buffalo, New York | WKBW-TV | 7.2 | Laff | Bounce TV | | |
| September 1 | Buffalo, New York | WIVB-TV | 4.2 | Court TV | QVC | | |
| September 1 | Charleston/Huntington, West Virginia | WOWK-TV | 13.4 | Grit | Rewind TV | | |
| September 1 | Charlotte, North Carolina | WJZY | 46.8 | QVC2 | Rewind TV | | |
| September 1 | Chicago, Illinois | WGN-TV | 9.4 | TBD | Rewind TV | | |
| September 1 | Cleveland, Ohio | WOIO | 19.4 | Shop LC | Rewind TV | | |
| September 1 | Grand Rapids, Michigan | WOOD-TV | 8.2 | Bounce TV | Rewind TV | | |
| September 1 | Grand Rapids, Michigan | WOOD-TV | 8.3 | Laff | SportsGrid | | |
| September 1 | Hagerstown, Maryland | WDVM-TV | 25.2 | Court TV Mystery | SportsGrid | | |
| September 1 | Hagerstown, Maryland | WDVM-TV | 25.3 | Grit | Rewind TV | | |
| September 1 | Hagerstown, Maryland | WDVM-TV | 25.4 | Laff | HSN | | |
| September 1 | Harlingen, Texas | KGBT-TV | 4.2 | TBD | Rewind TV | | |
| September 1 | Hartford/New Haven, Connecticut | WTNH | 8.2 | Bounce TV | Rewind TV | | |
| September 1 | Hartford/New Haven, Connecticut | WCTX | 59.2 | Grit | Comet | | |
| September 1 | Honolulu, Hawaii | KHON-TV | 2.4 | Court TV | Rewind TV | | |
| September 1 | Nashville, Tennessee | WKRN-TV | 2.2 | Bounce TV | SportsGrid | | |
| September 1 | Nashville, Tennessee | WKRN-TV | 2.4 | Grit | Rewind TV | | |
| September 1 | New York City, New York | WPIX | 11.4 | TBD | Rewind TV | | |
| September 1 | Portland, Oregon | KOIN | 6.3 | Bounce TV | SportsGrid | | |
| September 1 | Providence, Rhode Island | WNAC-TV | 64.3 | Laff | Rewind TV | | |
| September 1 | Raleigh/Durham, North Carolina | WNCN | 17.2 | Court TV | Rewind TV | | |
| September 1 | Raleigh/Durham, North Carolina | WNCN | 17.4 | Court TV Mystery | Circle | | - |
| September 1 | Roanoke/Lynchburg, Virginia | WWCW | 21.3 | Laff | Rewind TV | | |
| September 1 | Salt Lake City, Utah | KTVX | 4.3 | Laff | Rewind TV | | |
| September 1 | San Antonio, Texas | KABB | 29.2 | Comet | Rewind TV | | |
| September 1 | San Francisco, California | KRON-TV | 4.3 | Court TV | SportsGrid | | |
| September 1 | St. Louis, Missouri | KPLR-TV | 11.4 | Court TV | Rewind TV | | |
| September 1 | Scranton/Wilkes-Barre, Pennsylvania | WBRE-TV | 28.3 | Grit | Rewind TV | | |
| September 1 | Scranton/Wilkes-Barre, Pennsylvania | WYOU | 22.3 | Bounce TV | Twist | | |
| September 1 | Tampa-St. Petersburg, Florida | WFLA-TV | 8.2 | Court TV | SportsGrid | | |
| September 1 | Tampa-St. Petersburg, Florida | WFLA-TV | 8.3 | Court TV Mystery | Antenna TV | | |
| September 20 | Detroit, Michigan | WMYD | 20.1 | MyNetworkTV/ABC | Independent/ABC | On July 10, 2021, it was announced that Fox Corporation's MyNetworkTV programming service would move to Adell Broadcasting owned station WADL, ending its 36 years as an independent station, as well as their alternating affiliations with NBC. Meanwhile, WMYD returns to its independence for the first time since 1995, while retaining their alternating affiliation with ABC. | |
| September 20 | Detroit, Michigan | WADL | 38.1 | Independent/NBC | MyNetworkTV | On July 10, 2021, it was announced that Fox Corporation's MyNetworkTV programming service would move to Adell Broadcasting owned station WADL, ending its 36 years as an independent station, as well as their alternating affiliations with NBC. Meanwhile, WMYD returns to its independence for the first time since 1995, while retaining their alternating affiliation with ABC. | |
| September 20 | Florence, South Carolina | WPDE-TV | 15.2 | 24/7 weather | The CW | On September 20, 2021, the CW affiliation from WWMB moved to WPDE's second subchannel, although the "CW 21" branding was retained, continuing Sinclair's 2021 pattern of shifting major network affiliations onto directly owned stations rather than those of their shell corporations. The Weather Authority moved to the fourth subchannel, and Dabl moved from the fifth subchannel to WWMB's main channel and was upgraded to high definition. Stadium moved from the fourth subchannel to WWMB's third subchannel, where it had previously been located before moving to WPDE. | |
| September 20 | Florence, South Carolina | WPDE-TV | 15.4 | Stadium | 24/7 weather | On September 20, 2021, the CW affiliation from WWMB moved to WPDE's second subchannel, although the "CW 21" branding was retained, continuing Sinclair's 2021 pattern of shifting major network affiliations onto directly owned stations rather than those of their shell corporations. The Weather Authority moved to the fourth subchannel, and Dabl moved from the fifth subchannel to WWMB's main channel and was upgraded to high definition. Stadium moved from the fourth subchannel to WWMB's third subchannel, where it had previously been located before moving to WPDE. | |
| September 20 | Florence, South Carolina | WWMB | 21.1 | The CW | Dabl | On September 20, 2021, the CW affiliation from WWMB moved to WPDE's second subchannel, although the "CW 21" branding was retained, continuing Sinclair's 2021 pattern of shifting major network affiliations onto directly owned stations rather than those of their shell corporations. The Weather Authority moved to the fourth subchannel, and Dabl moved from the fifth subchannel to WWMB's main channel and was upgraded to high definition. Stadium moved from the fourth subchannel to WWMB's third subchannel, where it had previously been located before moving to WPDE. | |
| September 20 | Florence, South Carolina | WWMB | 21.2 | The CW Plus | TBD | On September 20, 2021, the CW affiliation from WWMB moved to WPDE's second subchannel, although the "CW 21" branding was retained, continuing Sinclair's 2021 pattern of shifting major network affiliations onto directly owned stations rather than those of their shell corporations. The Weather Authority moved to the fourth subchannel, and Dabl moved from the fifth subchannel to WWMB's main channel and was upgraded to high definition. Stadium moved from the fourth subchannel to WWMB's third subchannel, where it had previously been located before moving to WPDE. | |
| September 20 | Florence, South Carolina | WWMB | 21.3 | TBD | Stadium | On September 20, 2021, the CW affiliation from WWMB moved to WPDE's second subchannel, although the "CW 21" branding was retained, continuing Sinclair's 2021 pattern of shifting major network affiliations onto directly owned stations rather than those of their shell corporations. The Weather Authority moved to the fourth subchannel, and Dabl moved from the fifth subchannel to WWMB's main channel and was upgraded to high definition. Stadium moved from the fourth subchannel to WWMB's third subchannel, where it had previously been located before moving to WPDE. | |
| September 20 | Greenville-Spartanburg-Anderson, South Carolina/Asheville, North Carolina | WMYA-TV | 40.1 | MyNetworkTV | Dabl | | |
| September 20 | Nashville, Tennessee | WZTV | 17.2 | TBD | The CW | On September 14, 2021, Sinclair Broadcast Group announced that Nashville's CW affiliation would move from WNAB to WZTV's 17.2 subchannel beginning September 20 at 10 a.m., using WNAB's new status as an ATSC 3.0 lighthouse station to consolidate the CW affiliation directly onto a Sinclair-owned station. | |
| September 20 | Nashville, Tennessee | WNAB | 58.1 | The CW | Dabl | On September 14, 2021, Sinclair Broadcast Group announced that Nashville's CW affiliation would move from WNAB to WZTV's 17.2 subchannel beginning September 20 at 10 a.m., using WNAB's new status as an ATSC 3.0 lighthouse station to consolidate the CW affiliation directly onto a Sinclair-owned station. | |
| September 20 | Omaha, Nebraska | KXVO | 15.1 | The CW | TBD | | |
| September 20 | Omaha, Nebraska | KXVO | 15.2 | TBD | Stadium | | |
| September 20 | Omaha, Nebraska | KPTM | 42.3 | Comet | The CW | | |
| September 20 | San Antonio, Texas | WOAI-TV | 4.2 | Antenna TV | The CW | On September 20, 2021, the CW affiliation moved from Deerfield Media-owned KMYS to WOAI-TV's second subchannel, although the "CW 35" branding was retained. Dabl moved from KMYS' third subchannel to its main channel and was upgraded to high definition. TBD moved from KABB's third subchannel to KMYS' second subchannel. | |
| September 20 | San Antonio, Texas | WOAI-TV | 4.3 | Charge! | Antenna TV | On September 20, 2021, the CW affiliation moved from Deerfield Media-owned KMYS to WOAI-TV's second subchannel, although the "CW 35" branding was retained. Dabl moved from KMYS' third subchannel to its main channel and was upgraded to high definition. TBD moved from KABB's third subchannel to KMYS' second subchannel. | |
| September 20 | San Antonio, Texas | KABB | 29.2 | Rewind TV | Comet | On September 20, 2021, the CW affiliation moved from Deerfield Media-owned KMYS to WOAI-TV's second subchannel, although the "CW 35" branding was retained. Dabl moved from KMYS' third subchannel to its main channel and was upgraded to high definition. TBD moved from KABB's third subchannel to KMYS' second subchannel. | |
| September 20 | San Antonio, Texas | KABB | 29.3 | TBD | Rewind TV | On September 20, 2021, the CW affiliation moved from Deerfield Media-owned KMYS to WOAI-TV's second subchannel, although the "CW 35" branding was retained. Dabl moved from KMYS' third subchannel to its main channel and was upgraded to high definition. TBD moved from KABB's third subchannel to KMYS' second subchannel. | |
| September 20 | San Antonio, Texas | KMYS | 35.1 | The CW | Dabl | On September 20, 2021, the CW affiliation moved from Deerfield Media-owned KMYS to WOAI-TV's second subchannel, although the "CW 35" branding was retained. Dabl moved from KMYS' third subchannel to its main channel and was upgraded to high definition. TBD moved from KABB's third subchannel to KMYS' second subchannel. | |
| September 20 | San Antonio, Texas | KMYS | 35.2 | Stadium | TBD | On September 20, 2021, the CW affiliation moved from Deerfield Media-owned KMYS to WOAI-TV's second subchannel, although the "CW 35" branding was retained. Dabl moved from KMYS' third subchannel to its main channel and was upgraded to high definition. TBD moved from KABB's third subchannel to KMYS' second subchannel. | |
| September 20 | San Antonio, Texas | KMYS | 35.3 | Dabl | Stadium | On September 20, 2021, the CW affiliation moved from Deerfield Media-owned KMYS to WOAI-TV's second subchannel, although the "CW 35" branding was retained. Dabl moved from KMYS' third subchannel to its main channel and was upgraded to high definition. TBD moved from KABB's third subchannel to KMYS' second subchannel. | |
| September 20 | Wichita, Kansas | KSAS | 24.2 | TBD | MyNetworkTV | On September 20, 2021, after 15 years of MyNetworkTV having a separate affiliated station in Wichita, MyTV Wichita programming moved from KMTW to KSAS-TV 24.2, which formerly aired programming from Sinclair's Internet-sourced network, TBD. TBD moved to KMTW 36.4, which formerly aired Dabl programming since the network's launch on September 9, 2019, and Dabl moved to 36.1. | |
| September 20 | Wichita, Kansas | KMTW | 36.1 | MyNetworkTV | Dabl | On September 20, 2021, after 15 years of MyNetworkTV having a separate affiliated station in Wichita, MyTV Wichita programming moved from KMTW to KSAS-TV 24.2, which formerly aired programming from Sinclair's Internet-sourced network, TBD. TBD moved to KMTW 36.4, which formerly aired Dabl programming since the network's launch on September 9, 2019, and Dabl moved to 36.1. | |
| September 20 | Wichita, Kansas | KMTW | 36.4 | Dabl | TBD | On September 20, 2021, after 15 years of MyNetworkTV having a separate affiliated station in Wichita, MyTV Wichita programming moved from KMTW to KSAS-TV 24.2, which formerly aired programming from Sinclair's Internet-sourced network, TBD. TBD moved to KMTW 36.4, which formerly aired Dabl programming since the network's launch on September 9, 2019, and Dabl moved to 36.1. | |
| October 31 | Norfolk/Portsmouth/Newport News, Virginia | WVBT | 43.3 | Heroes & Icons | Rewind TV | | |
| November 1 | Las Vegas, Nevada | KLAS-TV | 8.4 | Circle | Rewind TV | | |
| November 1 | Richmond, Virginia | WRIC-TV | 8.2 | Ion Television | Rewind TV | | |
| December 22 | Cleveland, Ohio | WTCL-LP
| 6.1 | Jewelry Television
| Telemundo | On September 22, 2021, Gray Television announced it would convert Jewelry Television affiliate WLFM-LD into a Telemundo affiliate, adopting the callsign WTCL-LD, effective January 1, 2022. After switching to a temporary simulcast of CBS-affiliated sister WOIO's main feed in coincidence with the October 15 callsign change, WTCL converted to Telemundo early on December 22. On January 1, WOIO began to produce twice-nightly Monday–Friday newscasts for WTCL, becoming the first Spanish-language local news offering in the Cleveland market. | |