Poppy Montgomery, Ari Graynor Poppy Montgomery, Ari Graynor

CBS has announced premiere dates for new comedy Bad Teacher and returning drama Unforgettable.

Bad Teacher, which is based on the film of the same name, will premiere Thursday, April 24 at 9:30/8:30c. Ari GraynorSara GilbertRyan Hansen,David Alan GrierKristen Davis and Sara Rodier star.

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The once-canceled Unforgettable, which stars Poppy Montgomery, will return for its third season on Friday, April 4 at 8/7c, taking over the timelsot vacated by Undercover Boss after the reality show's season ends.

In addition, CBS announced that Thursday night comedies Two and a Half Men and The Crazy Ones will be swapping timeslots. Beginning Feb. 27,Two and a Half Men will air at 9/8c, followed by The Crazy Ones at 9:30/8:30c.