I don't know, it seems really stupid to me. No one at the show previews the clips before they play them? That doesn't make any sense. The Conan staff is obviously in on it, if not Conan himself. And that clip is really annoying!
But I still love Paul Rudd. The Anchorman staff was hilarious on the Daily Show recently.
I said this in the randoms too but I think it bears repeating here: I just ran into Paul Rudd! He's so handsome. And I acted like I have never talked to another human before in my life.