It says a lot that a total Democrat shill like Jon Stewart doesn't consider the DU line of thought worth pursuing...
"There's less diversity in modern American talk radio than there was in Stalin's Soviet Union."
"... [leans back and puts hands out in exasperation] Come on. I mean, I'm inclined to believe your point of view, but come on, he had the Sports call-in show on sunday, um..."
Something like that. It was funny, but there did look like a real "Dude, please" in there, maybe he just didn't feel like pursuing it.
I watched him less and less as the Iraq War started. He's really just laying into Bush, but it's not funny, just strikes me as sort of bitter. The real line that pissed me off was "I mean hey, Fox can't be the only fake news program around." Not funny.