Captain Scarlet (in-universe)

Captain Scarlet was a television series starring the character of the same name. Captain Scarlet featured a fictional aircraft carrier called Cloudbase, a fact which Colonel Ahmed reminded Osgood aboard Boat One, when she incorrectly stated that it came from Thunderbirds in response to the Twelfth Doctor, who referred to UNIT's aircraft carrier, Valiant, as "Cloudbase". The Twelfth Doctor noted to the two of them that he had met Sylvia Anderson. (TV: Death in Heaven)

Behind the scenes

 * The full title of the original TV series was, which was created by Century 21 Productions. Colonel Ahmed simply calls the show Captain Scarlet.
 * Phil Ford wrote for in the 2000s.
 * Though the link isn't directly made in Death in Heaven, Sylvia Anderson co-created both Thunderbirds and Captain Scarlet.