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
Thunderbirds (TV series) while Den of Geek's Martin Anderson considers the sequence the best of any TV series. The score was composed by Gray, who served as musical director for all of the Anderson productions up to the first series of "". In response to Gerry Anderson's request that the main theme have a "military feel", Gray produced a brass-dominated piece titled "The "Thunderbirds" March", which was recorded in December 1964 at Olympic Studios in London. The end titles were originally to have been accompanied by "Flying High", a lyrical track sung by Gary Miller with backing by Ken Barrie. Ultimately, a variation