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.
The Square Triangle
"The Square Triangle" is the tenth episode aired of the first series of "UFO" - a 1970 British television science fiction series about an alien invasion of Earth. The screenplay was written Alan Pattillo and the director was David Lane. The episode was filmed between 3 September to 15 September, 1969 and aired on the ATV Midlands on 9 December 1970. Though shown as the ninth episode, it was actually the eleventh to have been filmed.