A temporal loop – or time loop – is a classical theme in science fiction (which series didn’t use it?) in which a group of people revives the same time part, for instance the same day (the movie Groundhog Day), tirelessly.
- Replay, by Ken Grimwood
- Star Trek: The Next Generation, episode 2×13 Time Squared
- Stargate SG-1, episode 4×06 Window of Opportunity
- Groundhog Day with Bill Murray, directed by Harold Ramis