12/13/2007 (08:30PM - 09:00PM) (Thursday) : Emmy Award winner Tina Fey (NBC's "Saturday Night Live," "Mean Girls") writes, executive-produces and stars in this workplace comedy that takes viewers behind the scenes of a frenetic television variety show. Single Liz Lemon (Fey) is living every comedy writer's dream. She's head writer on a demanding, live TV program in New York City whose life is jolted when a brash new network president (Alec Baldwin, "The Aviator," "The Cooler") interferes with her show and bullies Liz into convincing Tracy Jordan (Tracy Morgan, "Saturday Night Live," "The Longest Yard"), a wild and unpredictable movie star, to join the cast. Now Liz must manage the unmanageable so that the show -- and her dream -- can go on. Also starring are Rachel Dratch ("Saturday Night Live") as Jenna Maroney, Scott Adsit ("Kicking and Screaming") as Pete Hornberger and Jack MacBrayer ("Arrested Development") as Kenneth. "30 Rock" is executive-produced by Lorne Michaels, Fey, JoAnn Alfano, Marci Klein and David Miner, and is produced by Broadway Video Television and NBC Universal Television Studio.