Gerry Anderson Associated Television (ATV) boss who offered to buy the show. This began a long friendship and a very successful professional association between the two men. The new series, "Supercar", (1960–61) was developed by Gerry & Sylvia Anderson and Reg Hill based on a story written by Sylvia Anderson and marked several important advances for APF. Sylvia Anderson took on a larger role and became a partner in the company. The series was also the official debut of Supermarionation, the electronic system that made the marionettes more lifelike and convincing on screen. The system used the audio signal from pre-recorded tapes
Stingray (1964 TV series) switch to colour filming was intended to increase the series' chances of being bought by a network in the United States, where colour TV broadcasts were already common. Sets were re-painted after NBC supplied APF with a list of colours believed to cause problems such as flaring or bleeding; according to Anderson, this was unnecessary because if filmed in Eastmancolour, a set "would appear on screen exactly as you had painted it." Nevertheless, some colours were avoided as they did not come out well in black and white. During the production of "Stingray", APF became the largest consumer of colour