The Letterman giggling thing is awful, but otherwise this worked. Sort of. Here’s an ’04 Leno clip, posted this morning by Gawker: “You know, this show is like a dynasty — you hold it and then you hand it off to the next person and I don’t want to see all the fighting and all the who’s better and nasty things back and forth in the press so right now, here it is…Conan, it’s yours. See you in five years, buddy.”