After a really, really, really long hiatus due to Tina Fey’s pregnancy, “30 Rock” is finally back - and in a new time slot.

With the holiday break over, the gang returns to work with Liz adopting a new outlook and Jenna becoming a hateful celebrity judge.

Catch the season premiere at 8 p.m. ET on NBC Thursday, followed by new episodes of “Parks and Recreation,” “The Office” and “Up All Night.”

Here’s what else you shouldn’t miss this week:

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