Stargate Atlantis (often abbreviated as SGA) is an American-Canadian science fiction television program, part of the Stargate franchise owned by MGM. Developed by producers Brad Wright and Robert C. Cooper, it is a spin-off from the television series Stargate SG-1. It is filmed and produced in Canada.
***
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.
Stargate Atlantis vs Stargate SG1, 
