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
Forrest Tucker continued to be active on stage as well, starring in the national productions of "Plaza Suite", "Show Boat" and "That Championship Season". Tucker returned to the big screen, after an absence of several years, in the Cannon Films action film "Thunder Run" (1986), playing the hero, trucker Charlie Morrison. His final film appearance was "Outtakes", a low-budget imitation of "The Groove Tube". Tucker, who had battled lung cancer for more than a year, as well as having a series of minor illnesses, collapsed and was hospitalized, for the second time in a week, on his way to the ceremony for