TV Comic the period between 1971 and 1973, when the strip was instead published in another Polystyle title, "Countdown/TV Action"). It also featured strip cartoons for the early puppet TV series produced by Gerry Anderson and AP Films—"Four Feather Falls", "Supercar" and "Fireball XL5"—until Anderson's titles became the focus of a rival publication, "TV Century 21". The 1960s issues are also noted as being the most collectable period in the comic's history. As well as "Doctor Who" and Anderson strips, other highly collectable material included "Telegoons" (which ran from 1963 to 1967), "Space Patrol" (from 1964 to 1965) and "The Avengers" (based
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.