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.
UFO conspiracy theory
On July 7, 1947, William Rhodes photographed an unusual object over Phoenix, Arizona. The photos appeared in a Phoenix newspaper and a few other papers. An Army Air Force intelligence officer and an FBI agent interviewed Rhodes on August 29 and convinced him to surrender the negatives, which he did the next day. He was informed he wouldn't be getting them back, but later he tried, unsuccessfully, to retrieve them. The photos were analyzed and subsequently appeared in some classified Air Force UFO intelligence reports. (Randle, 34–45, full account)