Should be hilarious tonite...

It's 'Factor' vs. actor: O'Reilly faces Colbert

Tonight, Colbert, who stars in Comedy Central's "Colbert Report," a show he's said was modeled after O'Reilly's, will appear on the Fox News Channel's "O'Reilly Factor" at 8 p.m. And at 11:30 p.m., O'Reilly will appear on "The Colbert Report."