By the time the series started broadcasting on ATV in September 1967, principal photography had been completed for the first 20 episodes.[48] In general, turnaround for completing all the puppet shots for each episode was two weeks[41][49] or 11 working days.[42] It was originally predicted that shooting would be wrapped within eight months,[41] but filming overran until late October due to the demands of the Thunderbird 6 shoot.[41] While production on the next Supermarionation series, Joe 90, began in November[50] it was not until early 1968 that the last episodes of Captain Scarlet were edited and completed for broadcast.[48]