American science fiction franchise
Source (Wikipedia): Battlestar Galactica

Battlestar Galactica is an American science fiction media franchise created by Glen A. Larson. It began with the original television series in 1978, and was followed by a short-run sequel series, Galactica 1980, a line of book adaptations, original novels, comic books, a board game, and video games. A reimagined version aired as a two-part, three-hour miniseries developed by Ronald D. Moore and David Eick in 2003, followed by a 2004 television series, which aired until 2009. A prequel series, Caprica, aired in 2010.