Battlestar Galactica is the story of a rag-tag fleet fleet of human survivors, on the run from the Cylons, who annihilated the Twelve Colonies.  The series first premiered in 1978 with a highly stylized, campy, Star Wars-inspired television movie that became a short-lived series.  It was revived for Galactica 1980, a misguided attempt to bring the rag-tag fleet to the environs of Earth.  Twenty-three years later, the series was revived by Ronald D. Moore as a darker, edgier show which focused as much on the negative side of humanity as the original focused on the lighter side.  With the conclusion of Moore’s incarnation of BSG, Caprica was launched as a prequel story, focusing on the intrigue involved in creating the Cylons.