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 1975; Gerry announced his intention to separate on the evening of the wrap party. Sylvia severed her ties with Group Three, and to alleviate his financial plight, Gerry Anderson sold his share of the profits from the APF/Century 21 shows and their holiday home in Portugal to Lew Grade, in return for a one-off payment. Between making the two series of "Space: 1999", Anderson produced a one-off television special, "The Day After Tomorrow" (also known as "Into Infinity"), about two spacefaring families en route to Alpha Centauri, for an NBC series of programmes illustrating current scientific theory for popular consumption.