We haven't seen much of Keith Olbermann since he abruptly resigned from his show on MSNBC in January. That is about to change -- his new show begins on Current TV on Monday (although the argument could be makde that we still won't see much of him, since no one watches the Al Gore-created network).
In any case, Olbermann began his TV comeback with an appearance on "The Colbert Report" on Wednesday.
The two battled, with Stephen Colbert telling Olbermann, "You're universally regarded as insane."
Check it out: