Groundhog Day on Feb. 2 might be when Punxsutawney Phil predicts the time that's left for winter, but it's also the time when we watch some of our favorite characters relive the same day over and over and over again and again and again.
The time loop, in which characters are caught in all types of problems, whether due to magic, quantum physics, black holes or mad scientists, is a mainstay for sci-fi. Check out 25 movie and TV instances when people are stuck repeating themselves, with clips when available.
It's the night before Christmas, and Mr. Mxyptlk has created a time loop that brings the end of the world closer and closer. Clark Kent deals with the same stories, and unlike other episodes, things change for the worse as time goes on, with the onset of war stopped just in time for Christmas. (While we couldn't locate an embeddable clip, you can watch the entire episode here.)
Supernatural: Mystery Spot
In this episode, Johnny meets a woman and sees a vision of the future where the two of them are kissing, learning that there are people after her. In order to save her, he has to go relive their meeting several times, with different outcomes. (Sorry, but we couldn't find any clips, embeddable or otherwise, for this one. If you know of one, let us know!)
Futurama: The Late Philip J Fry
A Neuro attempts to assassinate a Chinese official when Jane stops the act. Unfortunately, the man is able to jump back in time, and attempts to repeat his actions, not knowing that Jane has been brought back as well. When the second attempt is stopped, he tries again and again while the team puts together a plan to stop him. (Unfortunately, there seem to be no clips available for this one either. Sorry!)
Star Trek: Enterprise: Future Tense
The crew of the Enterprise come across an escape pod deep in space, with a long-dead occupant. While investigating, and with others chasing after the pod, crew members Trip and Reed find themselves caught in a time loop, but quickly escape. Using the time loop to their advantage, Archer booby-traps the pod and send it back out, where it's captured, and the gadget is fixed: it's a distress signal: the contents of the pod dematerialize.
Star Trek: Voyager: Coda
Captain Janeway and Chakotay are forced down onto a planet where Janeway is injured, and soon captured by the aliens who shot them down. Shortly thereafter, Janeway awakens to find herself back on the Shuttle, and begins to relive time over and over again, dying each time. After several loops, she finds that she hasn't jumped through time at all: it's an illusion created by another alien to try and feed off of her spirit.