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.
Aerial Phenomena Enquiry Network
They were first encountered in 1974 when British UFO researcher Jenny Randles received a one-hour length audio cassette tape through the post. Contained on the tape was an introduction from a male American voice claiming to be someone called "J.T. Anderson, Supreme Commander of APEN". The tape contained television and radio broadcasts of UFO reports, occasionally interrupted by other voices, terrified and in panic, claiming that UFOs were hostile and the listener should be wary of their nature and intentions.