Mainzelmännchen
The Mainzelmännchen are six comedic cartoon characters used as mascots for the German public service television broadcaster ZDF. They first appeared on television in 1963 to accommodate a government regulation prohibiting confusion between broadcast advertising and content. The cartoon characters served as a transition between the two.
They appear in between ads during broadcasts, in roughly three to five-second clips, and often during the satirical news program Heute-show. The name is a portmanteau of Mainz, home to the ZDF headquarters, and Heinzelmännchen, a type of gnome common in folklore in the region surrounding the city of Cologne. Wolf Gerlach created the characters.
The Mainzelmännchen have become popular across Germany. Apart from children's books and numerous other kinds of merchandise, radio dramas having been created surrounding them.