Tina Fey, Alec Baldwin

Lemon out ... for good.

The hour-long series finale of 30 Rock will air on Thursday, Jan. 31 at 8/7c, NBC announced Friday.

The same night, the network will premiere its new drama Do No Harm at 10/9c. The show is a Dr. Jekyll and Mr. Hyde-esque medical drama starring Steven Pasquale as Dr. Jason Cole, a neurosurgeon whose sociopathic dark side emerges each night.

Fall TV Scorecard: What's renewed/canceled?

NBC also announced that Rock Center with Brian Williams will move to Fridays at 10/9c on Feb. 8, with Dateline as its lead-in. Grimm will return from its winter hiatus on Friday, March 8 at 9/8c.

Are you sad to see 30 Rock sign off?