mnli premise: Commercial channels pour programs down from the heavens that match or surpass the products of the public broadcasters, who are too cowed to produce anything as homo-proud as the new Ellen , as racy as Brooklyn South , or as culturally subversive as The Larry Sanders Show . I ask you, what PBS newsman out-wings the liberal Peter Jennings? hypothesis: Public broadcasting is hampered by fears and can't produce progressive content on the same level as commercial broadcasters.