NBC wanted his decision. Well, consider it done:Conan O'Brien says he will no longer host 'The Tonight Show' if the storied talk show is nudged to 12:05 a.m. In a statement released Tuesday afternoon, O'Brien pounds away at NBC for proposing a move to bring Jay Leno back to the 11:35 p.m. time slot, saying that such a change for 'Tonight' would "seriously damage what I consider to be the greatest franchise in the history of broadcasting."

He singles out the network for not giving him a fair shake at success following your local news.

"It was my mistaken belief that, like my predecessor, I would have the benefit of some time and, just as important, some degree of ratings support from the prime-time schedule," he says. "Building a lasting audience at 11:30 is impossible without both."