query: Who created the British TV show UFO?
passage: UFO (TV series)
UFO is a 1970 British science fiction television series about an alien invasion of Earth. It was created by Gerry Anderson and Sylvia Anderson with Reg Hill, and produced by the Andersons and Lew Grade's Century 21 Productions for Grade's ITC Entertainment company.
passage: UFO conspiracy theory
Donald Keyhoe was a retired U.S. Marine who wrote a series of popular books and magazine articles that were very influential in shaping public opinion, arguing that UFOs were indeed real and that the U.S. government was suppressing UFO evidence. Keyhoe's first article on the subject came out in True Magazine, January 1950, and was a national sensation. His first book, "Flying Saucers Are Real" also came out in 1950, about the same time as Frank Scully's book, and was a bestseller. In 1956, Keyhoe helped establish NICAP, a powerful civilian UFO investigating group with many inside sources. Keyhoe became its director and continued his attacks on the Air Force. Other contemporary critics also charged that the United States Air Force was perpetrating a cover-up with its Project Blue Book.