The sixth season of 30 Rock, an American television comedy series on the NBC work in the United States, began airing on January 5233tv  Rock was renewed for a sixth season by NBC on November 15, 2010.[4] The season began airing mid-season to accommodate Tina Fey's pregnancy. On November 14, 2011, NBC announced that 30 Rock would return at the new time of 8:00 pm.　　Th...