30 Rock is an American television comedy series that ran on NBC from October 11, 2006, to January 31, 2013, and was created by Tina Fey. The series, which is loosely based on Fey´s experiences as head writer for Saturday Night Live, takes place behind the scenes of a fictional live sketch comedy series depicted as airing on NBC. The series´ name refers to 30 Rockefeller Plaza in New York City, the address of the GE Building, in which the NBC Studios are located.