What network had a character self-described as the "Lord of the Idiots"?
Seinfeld: Seinfeld is an American sitcom that ran for nine seasons on NBC, from 1989 to 1998. George Costanza:  He has variously been described as a "brain-damaged, short, stocky, slow-witted, ugly, old, bald man" (by Elaine Benes and Costanza himself) and "Lord of the Idiots" (by Costanza himself).
NBC