Indeed, Ellis himself had seen his script ideas for “The Clock”, “The People Who Couldn't Remember” and “The Ocean Liner” all rejected.
David Ellis's other writing credits include Paul Temple, Spy Trap, and many episodes of Dixon of Dock Green in the 1960s and Z-Cars in the late 1960s and early 1970s.
[4] The Big StoreEllis, who once again co-wrote with Hulke in November 1966, submitted this four-part story, with complete drafts for Episode One.
The story would see The Doctor, Polly, Jamie, and Ben land in a mall in 1973, where they discover a two, unidentified aliens; one by numbers and another with letters.
[6] The mannequin invasion story idea was reused in Robert Holmes’ Spearhead from Space in 1970 as a Jon Pertwee serial.