Science Fiction Series

Live Action TV series that belong to the Science Fiction genre.

For tropes commonly used in these works, see Speculative Fiction Tropes. For series that fall under other sub-genres of Speculative Fiction, see Speculative Fiction Series.

Note: If a series is already on one of the listed sub-categories, do not list it here. See Also:
 * Superhero
 * The 4400
 * A for Andromeda
 * Alcatraz
 * Alien Nation
 * Alphas
 * Andromeda
 * Babylon 5
 * Battlestar Galactica Classic
 * Battlestar Galactica Reimagined
 * The Bionic Woman
 * Blakes Seven
 * Buck Rogers in The 25th Century
 * Caprica
 * Captain Video
 * Code Name Eternity
 * Continuum
 * Crusade
 * Dark Skies
 * Defying Gravity
 * Dirk Gently
 * Doctor Who
 * Dollhouse
 * Earth 2
 * Eureka
 * The Event
 * Falling Skies
 * Farscape
 * Firefly
 * First Wave
 * Flash Forward 2009
 * Flash Gordon 1954
 * Flash Gordon (2007)
 * Fringe
 * The Girl From Tomorrow
 * The Hitchhikers Guide to The Galaxy
 * The Invaders
 * Jake 20
 * Jason of Star Command
 * The Journey of Allen Strange
 * Journeyman
 * K 9
 * K-9 and Company
 * Lexx
 * Land of the Giants
 * Land of the Lost
 * Lost in Space
 * MANTIS
 * Millennium
 * Mystery Science Theater 3000
 * Neverland
 * Now and Again
 * Odyssey 5
 * Otherworld
 * Outcasts
 * The Outer Limits
 * Prehistoric Park
 * Primeval
 * Quantum Leap
 * Raumpatrouille
 * Red Dwarf
 * Rocky Jones Space Ranger
 * Roswell
 * The Sarah Connor Chronicles
 * The Sarah Jane Adventures
 * Sea Quest DSV
 * Seven Days
 * The Six Million Dollar Man
 * Sliders
 * Space: 1999
 * Space Above and Beyond
 * Space Cases
 * Space Odyssey Voyage to The Planets
 * Space Patrol
 * The Sparticle Mystery
 * Star Cops
 * Stargate SG 1
 * Stargate Atlantis
 * Stargate Universe
 * Starhunter
 * Star Trek
 * Star Trek the Original Series
 * Star Trek the Next Generation
 * Star Trek Deep Space Nine
 * Star Trek Voyager
 * Star Trek Enterprise
 * Starman
 * Terra Nova
 * Threshold
 * Time Trax
 * The Time Tunnel
 * Torchwood
 * Torchwood Children of Earth
 * Torchwood Miracle Day
 * The Twilight Zone
 * UFO
 * V
 * V-2009
 * Viper
 * Voyagers
 * Voyage to The Bottom of The Sea
 * War of the Worlds
 * Warehouse 13
 * Weird Science
 * The X Files