05/01/2009 05:12 am ET | Updated May 25, 2011

Letterman Tells O'Reilly: "I Think Of You As A Goon" (VIDEO)


David Letterman, who infamously told Bill O'Reilly in 2006 that "about 60 percent of what you say is crap," had his old bête noire back on his show on Tuesday night.

At the start of the show, Letterman couldn't help lashing into the Fox News host, saying "I wish I was smart enough to make him look ridiculous... He's going to come out here all puffed up."

From practically the moment O'Reilly sat down, the sparks flew along with some surprising topics upon which they agreed.

"I think of you as a goon," Letterman point-blank told O'Reilly. Then, holding up the cover of O'Reilly's book, "A Bold Fresh Piece of Humanity," which has a photo of O'Reilly as a boy, Letterman quipped, "I look at that and I see this sweet, adorable kid... I have a sweet adorable kid and I wonder, 'What if he too becomes a goon?'"

And Letterman launched into O'Reilly positions, such as his boycott of Sean Penn movies, giving him the ultimate back-handed compliment: "You're too smart to believe what you say."

When Letterman focused on Rush Limbaugh, implying that he's the face of the Republican party, O'Reilly alluded to the radio host's power, saying that "I don't think any Republicans or conservatives want to offend the man." And he strove to distinguish himself from Limbaugh and fellow Fox News personality Glenn Beck, claiming he's different from them because he's a journalist: "I got a degree, I paid a lot of money for... I went out, covered stories... those guys are basically entertainers... we give information"

O'Reilly also revealed that former Vice President Dick Cheney refused to come on his program, adding that he doesn't like Cheney: "We asked him a million times... he wouldn't come on."

And he laughed about the famous video of him cursing out his staff - "I have so much better stuff than that... Irish guys curse. That's in the DNA... We're loud and say bad words."