He probably made the best case against Fox news using actual examples of bias and hypocrisy. Conservatives will blow it off, but he did give good examples especially when he called out the one guy for comparing Obama for running the media like Stalin, but a little over a year ago the same Fox commentator said Bush should have banned MSNBC sooner. The smoking gun was when Stewart disclosed that the children singing the "Obama song" was a clip from nine months ago. Fox's news programming reported it like it was a recent phenomenon. That showed that they were digging and reaching for ways to bash the current administration to satisfy their conservative base.
You may not want to hear this but FOX news is good when they run non-political stories. I use to watch them a lot, I didn't mind their conservative slant, but they totally crossed the line when they started advocating conservative political (or grass roots movements), and like John Stewart said, used the opinion programming as the basis of their news programming.
One day we might get an Independent News station.