Kingdom. Along with the season premiere of sister show Stargate SG-1's episode "Avalon", Stargate Atlantis's premiere episode of season two, "The Siege, Part 3", failed to attract many viewers, holding the average viewership rating it held in the previous season of Stargate Atlantis. While the show was not a success, together with Battlestar Galactica and Stargate SG-1, it made the Sci Fi Channel the top rated cable network in the United States for the 18–49 and 25–54 demographics. Stargate Atlantis had a higher household rating than Stargate SG-1, but a lower one than Battlestar Galactica''. References External links The Siege Part 1, Part 2 and Part 3 at mgm.com The Siege on scifi.com 2005 American television episodes Stargate Atlantis episodes Fictional sieges