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It is a TV series produced by MGM based on the 1994 blockbuster movie "Stargate." It is led by Richard Dean Anderson, who gained international fame for his role in "MacGyver." Other cast members include Michael Shanks, Amanda Tapping, Christopher Judge, Don S. Davis, Teryl Rothery, and Corin Nemec. The first season premiered in the United States in 1997 and was broadcast in over 30 countries worldwide, receiving a warm response. This year (2008), it has entered its tenth season. The Stargate is an ancient and advanced alien technology that uses a wormhole to instantly transport matter across the universe. The Stargate project is codenamed Area 52, under the command of Major General George Hammond, who reports directly to the President. The base is located beneath the North American Aerospace Defense Command in Cheyenne Mountain, Colorado, and extends 28 levels underground. It was built during the Cold War as a nuclear war shelter. Currently, there are 25 SG teams under its command.