Battlestar Galactica is a franchise of science fiction films and television series, the first of which was produced in 1978. A series of book adaptations, original novels, comic books and video games have also been based on the concept. A reimagined miniseries aired in 2003, with a regular television series starting in 2004.

All of the Battlestar Galactica productions share the same premise: In a distant part of the universe, a civilization of humans live on planets known as the Twelve Colonies. In the past, the Colonies have been at war with a cybernetic race known as the Cylons. With the help (knowing or unknowing) of a human named Baltar, the Cylons launch a sudden sneak attack on the Colonies, laying waste to the planets and devastating their populations. A few thousand of the human survivors flee into space aboard any spacecraft they can reach. Of all the Colonial Fleet, the Battlestar Galactica appears to be the only military ship that survived the attack. Under the leadership of famed military leader Commander Adama, the Battlestar Galactica and its crew take up the task of leading the small fugitive fleet of survivors into space in search of a fabled refuge known as Earth.

Battlestar Galactica (1978)

main: Battlestar Galactica (1978 TV series) Glen A. Larson, the Executive Producer of Battlestar Galactica, has stated in many interviews that he originally conceived of the Galactica premise in the late 1960s, which he originally called Adam's Ark. However, he was unable to get the project greenlit for many years.

Battlestar Galactica was finally produced in the wake of the success of the 1977 film Star Wars. In fact, 20th Century Fox sued Universal Studios (the studio behind Battlestar Galactica) for copyright infringement, claiming that it had stolen 34 distinct ideas from Star Wars. Universal promptly countersued, claiming Star Wars had stolen ideas from the 1972 film Silent Running (notably the robot "drones") and the Buck Rogers serials of the 1940s.

Initially, Larson envisioned Battlestar Galactica as a series of made-for-TV movies (a three-hour pilot and two two-hour episodes) for the ABC television network. A shortened version of the three-hour pilot, Saga of a Star World, was released in Canadian theaters (before the series aired) and American theaters (after the series aired), and instead of two additional movies, a weekly television series followed.

In 1979 at the 6th Annual People's Choice Awards, the series won for Best New TV Drama Series.

During the eight months after pilot was broadcast, 17 original episodes of the series were aired (five of them two-part shows), totaling 24 hours of broadcasting. Citing declining ratings and cost overruns, ABC canceled Battlestar Galactica in April, its last episode "The Hand of God" premiering on April 29, 1979.