Tina Fey

A PR photo of Alec Baldwin (left) and Tina Fey from the NBC television series 30 Rock.

The show was created by Fey, and she also stars as Liz Lemon, a variety show producer at NBC's studios at 30 Rockefeller Center (hence the show title). Alec Baldwin plays Jack Donaghy, the craven (but somehow likable) network executive who oversees her show.

30 Rock began its long run in the fall of 2006.