Jon Stewart and the Daily Show have always been great at exposing Republican hypocrisy (and Democratic - there's just a lot more Republican hypocrisy). With his show on the Republican opposition to funding healthcare for first responders, he apparently had a profound effect on the bill's passage:
"I don't even know if there was a deal, to be honest with you, before his show," said Kenny Specht, the founder of the New York City Firefighter Brotherhood Foundation, who was interviewed by Mr. Stewart on Dec. 16.
That show was devoted to the bill and the comedian's effort to right what he called "an outrageous abdication of our responsibility to those who were most heroic on 9/11."
Mr. Specht said in an interview, "I'll forever be indebted to Jon because of what he did."
The New York Times article goes on to quote people in the business comparing Stewart to Cronkite and Murrow. He's a bit funnier than either of those guys were, though.