Tags: Television Season.
The first season of the television series Stargate Atlantis commenced airing on the Sci Fi Channel in the United States on July 16 2004 concluded on The Movie Network in Canada on January 31 2005 and contained 20 episodes. The show was a spin off of sister show Stargate SG-1. Stargate Atlantis re-introduced supporting characters from the SG-1 universe such as Elizabeth Weir and Rodney McKay among others. The show also included new characters such as Teyla Emmagan and John Sheppard.