The Best Sci-Fi TV Shows & Series
Browse our collection of some of the best science fiction TV shows to air during primetime television since 1950.
1986-1990 | 
NBC
ALF is an American science fiction sitcom that originally aired on NBC from 1986 to 1990, created by Paul Fusco. The title character was Gordon Shumway, a friendly extraterrestrial nicknamed ALF (an acronym for Alien Life Form), who crash lands in the garage of the suburban middle-class Tanner family.
NBC 
1966-1969 | 
ABC
The Avengers is a spy-fi TV series set in 1960s Britain focused on Dr. David Keel (Ian Hendry) and his assistant John Steed (Patrick Macnee).
ABC
Series Info | Cast & Characters | Episodes | Theme Song | DVDs | Watch | Photos
1978-1982 | ABC
Mork & Mindy is a science fiction sitcom that aired on ABC from 1978 until 1982 that starred Robin Williams as Mork, an alien who comes to Earth from the planet Ork in a small, one-man egg-shaped spaceship. Pam Dawber co-starred as Mindy McConnell, his human friend and roommate. In 1997, the episode "Mork's Mixed Emotions" was ranked #94 on TV Guide's 100 Greatest Episodes of All Time list.
ABC 
1963-1966 | 
CBS
My Favorite Martian is sci-fi sitcom that aired on CBS from 1963 until 1966 that starred Ray Walston as Uncle Martin (the Martian) and Bill Bixby as Tim O'Hara.
CBS 
1985-1989 | Syndication
Small Wonder is a sci-fi sitcom that aired in first-run syndication from 1985 to 1989. The show chronicles the family of a robotics engineer who, after he secretly creates a robot modeled after a real human girl, tries to pass it off as their daughter, Vikki.
1966-1969 | NBC
Star Trek is a science fiction series that aired on NBC from 1966 to 1969. The show later acquired the retronym of Star Trek: The Original Series to distinguish the show within the media franchise that it began. The show became a cult classic in syndication during the 1970s, leading to additional television series, movies, books and more.
NBC 
1959-1964 | CBS
The Twilight Zone is sci-fi anthology series created by Rod Serling that aired on CBS from 1959 until 1964. Each episode is a mixture of self-contained drama, psychological thriller, fantasy, science fiction, suspense, or horror, often concluding with a macabre or unexpected twist. A popular and critical success, it introduced many Americans to serious science fiction and abstract ideas through television and also through a wide variety of Twilight Zone literature.
CBS 
