In addition, "Rock Center with Brian Williams" will move to Fridays beginning February 8 from 10-11 p.m. right after "Dateline NBC" which also makes a move to an earlier 9 p.m. slot.
The announcements were made Friday by Robert Greenblatt, Chairman, NBC Entertainment.
"January 31 will be a special night as one classic series will mark its finale with a great hour-long sendoff episode while a promising new drama will make its debut on Thursdays," said Greenblatt. "'30 Rock'" is acclaimed as a legendary comedy and we will see a truly memorable and fitting last episode. In "Do No Harm," viewers will have a unique new dramatic storyline with an exciting new star in Steven Pasquale that takes them into dark and uncharted territory."
Details of the finale of "30 Rock" will be provided later.
"Grimm" will return to the schedule on Friday, March 8, at 9 pm. In "Do No Harm," Dr. Jason Cole (Steven Pasquale, "Rescue Me") is a highly respected neurosurgeon who has it all - a lucrative career, confident charm, the gift of compassion. But he also has a deep, dark secret.
One morning when he wakes up disoriented in a wrecked hotel room amidst several near-naked women he's never seen before, he knows one thing: it's happening again. Every night at the same hour, something inside Jason changes, leaving him almost unrecognizable, seductive, devious, borderline sociopathic.
