UFO (TV series)
A single season of 26 episodes (including the pilot) was filmed over the course of more than a year; a five-month production break was caused by the closure of MGM-British Studios in Borehamwood, where the show was initially made. Production then moved to Pinewood Studios in Buckinghamshire. "UFO" was first broadcast in the UK and Canada in 1970, and in US syndication over the next two years.
Donald Keyhoe
On January 22, 1958, Keyhoe appeared on a CBS live television show the "Armstrong Circle Theatre" to speak on the topic of UFOs. Keyhoe charged that a U.S. Congressional committee was evaluating evidence that "will absolutely prove that the UFOs are machines under intelligent control". However CBS stopped the audio portion of the live broadcast. Herbert A. Carlborg, CBS Director of Editing stated "this program had been carefully cleared for security reasons".