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- The Melancholy of Haruhi Suzumiya
- Mork & Mindy
- Final episode (season 4) — when attempting to escape another alien, Mork and Mindy flee in to Earth's past.
- ¡Mucha Lucha!
- "Woulda Coulda Hasbeena"
- Murder Most Horrid
- Episode "A Determined Woman".
- My Favorite Martian
- Mirror Mirror
- Megas XLR
Read more about this topic: List Of Television Series That Include Time Travel