"UFO" - First Episode - "Identified"

"Identified" is the pilot and first episode of UFO, a 1970 British television science fiction series about an alien invasion of Earth. The screenplay was written by Gerry Anderson, Sylvia Anderson and Tony Barwick; the director was Gerry Anderson. The episode was filmed between 28 April and 12 May 1969, and aired on ATV Midlands on 16 September 1970.
The series was created by Gerry and Sylvia Anderson with Reg Hill, and produced by the Andersons and Lew Grade's Century 21 Productions for Grade's ITC Entertainment company.