Below is a list of my top favorite television episodes that feature time travel:
TOP TEN FAVORITE TIME TRAVEL TELEVISION EPISODES
1. "Future's End" ("Star Trek Voyager"; 1996) - A 29th century timeship causes a time paradox when it accidentally sends itself and Voyager to two different periods in 20th century Earth.
2. "Tempus Fugitive" ("Lois and Clark: The New Adventures of Superman"; 1995) - Lois Lane and Clark Kent are brought back to the past by H. G. Wells, in an attempt to stop the time-travelling villain Tempus from killing the infant Superman.
3. "Endgame" ("Star Trek Voyager; 2001) - Admiral Kathryn Janeway comes from the future to try and shorten Voyager's trip home.
4. "War Without End" (Babylon Five; 1996) - Former Babylon 5 commander, Jeffrey Sinclair, returns with a mission vital to the survival of the station - travelling back in time to steal Babylon 4.
5. "LaFleur" ("Lost"; 2009) - The remaining survivors of Flight 815 and the freighter find themselves permanently in the 1970s and become part of the Dharma Initiative, following John Locke's disappearance.
6. "The City on the Edge of Forever" ("Star Trek"; 1967) - After accidentally overdosing on a powerful stimulant, Dr. McCoy acts erratically and disappears through the Guardian of Forever, a newly-discovered time portal on a remote planet. Captain Kirk and Commander Spock follow after learning that McCoy somehow changed history. Arriving in the 1930s, the duo meet Edith Keeler, a New York social worker who gives them a place to stay. As the days pass, and McCoy is nowhere to be seen, Kirk finds himself falling in love with Keeler... but Spock discovers that Keeler must die to restore the timeline.
7. "Déjà Vu All Over Again" ("Charmed"; 1999) - As a demon makes plans for his attempt to kill the Charmed Ones, he receives a visit from another demon named Tempus, who will turn back time until the demon succeeds in killing all the sisters.
8. "Babylon Squared" ("Babylon Five"; 1994) - A previous station, Babylon 4, reappears at the same place it disappeared four years before; and Jeffrey Sinclair and Michael Garibaldi lead an expedition to evacuate its crew.
9. "Chris-Crossed" ("Charmed"; 2003) - A mysterious woman from the future named Bianca arrives to take Chris Halliwell's powers and bring him back forcefully to the future.
10. "D.O.A." ("Timecop"; 1998) - After Jack Logan and his boss, Gene Matuzek are murdered, Claire Hemmings takes an unauthorized trip back to the past to warn Logan.