OT: Late Night Battle and Data

First off, I am with Conan, because I have a sense of humor, and am under the age of 40. I think Conan has been hamstrung by NBC since he took over the Tonight Show, being forced to tone down his humor and plug terrible NBC shows by having their "stars" on as guests. Everyone is talking about how Conan hasn't had enough time to build an audience. Since we're all so fond of data, is there any way to get old ratings from early on in Leno's Tonight Show? How long did Leno take to build an audience? Is there a ratings archive anywhere? I'm sure with the collective brain of MGoBlog we can show that NBC is full of idiots. Or not. Depending on what the data show.