Sylvia Anderson first episode of a series then sharing the work according to their strengths. Gerry tended to specialise in special effects and hardware, and Sylvia in character, voices, costume, dialogue, and plotlines. In this way, Anderson contributed plot development and voice work for a series of half-hour shows including "Supercar", "Stingray" and "Fireball XL5". However, she felt the half-hour format was insufficient to fully develop characters and stories, and she persuaded the team's TV producer Lew Grade to extend their shows to a full hour. In the early 1960s, the Andersons co-created the series "Thunderbirds", and Sylvia created the characters. She
UFO (TV series) the cancellation of children's espionage television series "The Secret Service" (1969) after only one series, Lew Grade approached Gerry Anderson to look into creating his first live-action TV series. Anderson worked with his wife, Sylvia, and producer Reg Hill to create a sci-fi adventure series based around UFOs. Anderson said the core idea for the series was that UFO sightings were a common issue during the late 1960s and that idea of aliens harvesting human organs came from the work of Christian Barnard and his pioneering transplant operations. The creative team initially envisioned an organisation called UFoeDO (Unidentified Foe Defence