Liberal filmmaker Ken Burns on Sunday highlighted conservative William F. Buckley as an example of the diversity of PBS. He also claimed Ronald Reagan as a supporter of public financing public television.
Writing in the Washington Post, the director lobbied, "[PBS] contributes to cradle-to-grave continuing education services that are particularly appreciated in rural states - belying the canard that this is programming for the rich and bicoastal. It also gave William F. Buckley a home for 30 years." [Emphasis added.]
Of course, Buckley ended his run on Frontline in 1999, 12 years ago. If Burns has to go back that far for a strong conservative presence, perhaps this isn't the strongest argument.