Supermarionation a puppet hand, suspended by wires, operating the controls of "Thunderbird 1". The term "Supermarionation" was not coined until during production of later episodes of "Supercar". As a result, "Four Feather Falls" is often omitted from lists of Supermarionation productions. Two feature films based upon "Thunderbirds" were also made with Supermarionation: "Thunderbirds Are Go" (1966) and "Thunderbird 6" (1968). Numerous episodes of "Thunderbirds", "Captain Scarlet", and other series were also edited together (sometimes with the addition of new narration) to form movie-length features for VHS release and TV syndication in the 1980s. "The Secret Service" was actually a hybrid of
Supermarionation live action and Supermarionation, using footage of live actors from a distance to depict driving, walking, etc. In 1973, Gerry Anderson produced a pilot episode for another Supermarionation/live-action hybrid entitled "The Investigator" but was displeased with the results, so no series resulted. This is the last known occasion in which a full Supermarionation production was mounted. Supermarionation techniques were recreated and employed during the production of "Filmed in Supermarionation", a 2014 documentary that told the behind the scenes story of the films and television series produced by AP Films. In 1983, Gerry Anderson returned to puppetry with the science-fiction TV