In 2002, the franchise's first animated series, Stargate Infinity, was released as an introduction to the Expanded Universe. It concluded after one season. In 2004, Stargate SG-1's first spin-off series, entitled Stargate: Atlantis, was released. Stargate: Atlantis concluded January 9, 2009 after five seasons and 100 episodes. A second Stargate spin-off series, entitled Stargate Universe, began airing on October 2, 2009 and concluded after 2 seasons. As of May 9, 2011, with the series finale of Stargate Universe, no new episodes of the Stargate franchise are planned for production, leaving the franchise with a total of 354 canon episodes.