I like Jon Stewart, but he does know/understand fuck all about economics. It's always been obvious from when I use to watch his show. He's a good comedian, and is intelligent and a decent social commentator, but not when it comes to economics. If he would've known what he's talking about he could've certainly creamed O'Reilly on this point, but as the video title says he knocked himself out for Bill O'Reilly.
I didn't know they had a debate. Will have to track the video down.