L
- Lois and Clark: The New Adventures of Superman
- Lilo & Stitch
- "Skip"
- LOST
- Lost in Space
- "Visit to a Hostile Planet" (season 3) — the Jupiter II is sent back via a time warp to Earth in the year 1947.
- "The Time Merchant" (season 3) — Doctor Smith is sent back to the launch date of the Jupiter II on Earth.
Read more about this topic: List Of Television Series That Include Time Travel