Monday marks the return of Keith Olbermann to broadcast television with “Countdown” on Al Gore’s CurrentTV. In this mock-combative interview from “The Colbert Report”, Stephen Colbert (sans trousers and wearing a sporty pair of black boxer-briefs with his black socks and shiny dress oxfords) asks the former MSNBC host how it feels to know that Bill O’Reilly “won” and what it’s like to be “universally regarded as insane” by other people in the media. Olbermann takes the ribbing in stride and snipes, “Well, somebody had to wear some pants!” when Colbert points out the fact that Keith is wearing jeans with his coat and tie.

Watch the clip, embedded via Mediaite, below: