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
Gerry Anderson successful in both the UK and America and its theme song "Avenues and Alleyways" became a hit record in the UK for singer Tony Christie. It was also the first live-action series produced by Anderson to survive to a second season. Following "The Protectors", Anderson worked on several new projects, none of which he was able to take into production. A proposed second series of "UFO" was not undertaken, and a return to marionettes in the television pilot for a series called "The Investigator" failed to find a buyer. Elements of the abandoned second series of "UFO" were eventually turned