The spam scam o'the week is to use news headlines, so I've seen this half a dozen times and dismissed it as a joke. But no joke: On January 18...well, here's how Tom's favorite newspaper, the San Jose Mercury-News put it:

The two cable channels have announced that Bill O'Reilly and Stephen Colbert will trade appearances on their respective shows the night of Jan. 18 -- which should make some for real giggles. "The Colbert Report'' is, of course, a faux news show that sends up right-wing pundits, while "The O'Reilly Factor'' (the top-rated show in all of cable news) just seems like a faux news show (well, to liberals anyway.)

It sounds as if both men are going into the cross-over with the right attitude. In a statement, Colbert said it was going to be "an honor to speak face-to-face with a broadcasting legend -- and I feel the same way about Mr. O'Reilly.'' Meanwhile, O'Reilly allowed that he was "looking forward to speaking to the man who owes his entire career to me.''

And that's the truthiness.