Conan O'Brien: So long to "Late Night"

Conan O'Brien was a class act in signing off of "Late Night" on Friday after 16 years. Hard to believe that he hosted that show longer than David Letterman did.

Conan spent the past 10 minutes of his final "Late Night" seg saying a heartfelt thank you to everyone who helped him on his way, from Letterman to Jay Leno to Lorne Michaels and Jeff Ross to his family to various regimes of NBC execs (and through it all, Rick Ludwin stands tall).

Variety's Michael Schneider has the skinny on it all right here, or watch the seg for yourself courtesy of Hulu. And then click here to check out a seven-minute clip of a very different, very gawky Conan from mid-1993, doing a guest stint as "the new guy" with Letterman on the show he would soon inherit.