Channel 78


Channel 78 was removed from television use in 1983, but was formerly used by television stations in North America which broadcast on UHF frequencies 854–860 MHz.
There was one full-power originating station on this frequency in Canada. CBEFT first aired on Channel 78 in 1976, moving to channel 54 in 1982. By 1996, the station had become a simple rebroadcaster of CBOFT Ottawa–Hull. Later a CBLFT rebroadcaster, it had been moved to channel 35 due to the reassignment of UHF TV channels 52–69 to mobile telephony in 2009; it remained full-power analogue until closing down in 2012.
In the United States, channels 70–83 had served primarily as a "translator band" containing repeater transmitters to fill gaps in coverage for existing stations. These transmitters were forced to change frequency repeatedly, as stations which had moved from 70–83 due to the 1983 introduction of analogue mobile telephony typically had to move again by 2011 due to the loss of UHF TV channels 52–69 to cell phones. While as low-power television stations these were not required to DTV transition in [the United States|convert to digital operation] on the 2009 US transition date, most were adversely affected by the upstream full-power stations conversion. Many have gone silent.

Use of Channel 78 by U.S. Military during Vietnam War

From 1962 until the Fall of Saigon on April 30, 1975, the United States Military operated the American Forces Vietnam Network relaying its programming from the main AFVN broadcast facilities in Saigon to the Channel 78 transmitter in Cần Thơ.