22. Formidable Opponent
Who would be intelligent enough to square off with Colbert in a debate? Only one man, of course: Stephen Colbert. In each installment of "Formidable Opponent," the host literally took on both sides of an issue, like Pakistan or offshore drilling, with the help of a green screen. It's a testament to the Report's pleasure in being technically innovative — but not at the expense of laughs — that the segement was both how-did-they-do-that? fun and insightful. And it gave Colbert a chance to show off his performance chops, alternating seamlessly between the two positions in the debate as the cameras cut from one side to the other.