Alec Baldwin Says NBC's '30 Rock' Is Ending Next Year

So long, 30 Rock?

Though NBC has made no official comment, Alec Baldwin claims the Emmy-winning sitcom is ending next year.   "I will tell you one thing, and that is our show next year is our last year of the show,” he tells New York Magazine’s Vulture blog. "Our contracts are expired (in 2012), and Tina (Fey) is gonna have a big career directing films and writing. She's going to be the next Elaine May. She'll be great.”   There have been no discussions at the network to end 30 Rock after the show's upcoming sixth season, according to sources.   It isn’t the first time Baldwin, who plays Jack Donaghy, has talked about the show’s future.   Last year, he told CNN he was leaving the show once his contract ends in 2012, but his rep later said the actor has no such plans. And in 2009, Baldwin threatened to leave the profession altogether telling Us magazine, “I don’t have any interest in acting anymore.”