Having Bill O’Reilly as a guest on The Daily Show right before the second episode of The Colbert Report gave a pretty good comparison of what Steven Colbert has to live up to mock. I think he’s doing a pretty good job, and there were a couple of really funny moments in the premiere episodes, but there’s one problem I see: Colbert knows it’s all an act, which I think is a liability in making it believable. O’Reilly is either the best actor in the world, or he’s just forgotten that it’s all for show.