The Thunderbirds ATV Today documentary was aired on January 13th, 1966, and filmed within the studio where the series was made on the Slough Trading Estate. It features interviews with several people who worked on Thunderbirds, namely Gerry and Sylvia Anderson, and Derek Meddings.
Quite a number of other production team members are seen at work during the documentary, including but not limited to Ray Brown, Charlie Bryant, Roger Dicken, Jimmy Elliott, Ian Spurrier, and Mary Turner.