Editing Robot (Doctor Who) (section)

=== Filming ===
This was the first serial to be produced for the season.<ref name="Lofficier 2003" /> This was also the first ''Doctor Who'' serial to have its location material shot entirely on [[videotape]] using [[outside broadcasting]] facilities, as opposed to the more usual [[BBC television drama]] practice of the time of shooting studio interiors on videotape and location exteriors on [[16 mm film]]. This was due to the large number of video effects involving the eponymous robot required in exterior scenes (shot at the then BBC Engineering Training Department at [[Wood Norton, Worcestershire]]<ref name="Braxton 2010" /><ref name="Howe 1992" />), which were easier and more convincing to marry to videotape than to film. The team had learned that lesson during the previous season's ''[[Invasion of the Dinosaurs]]''. The Wood Norton facility was chosen for location shooting because it had an underground bunker, which director Christopher Barry felt would be suitable for the entrance to the underground complex in the story; however, they were refused permission to shoot in that area.<ref name="Howe 1992" />