And here it is – the Tardis control room! In all its (overhead) glory. (NB We've rotated this image to improve legibility.)
The outline of the original control room follows exactly the outline and a weird kink in the studio perimeter. The “walls” include a 40ft artist cloth at the back, a long section of 28ft photo blow-ups of circular “indentations” and, lower down, a 12ft 4 “floating screen on casters” and of course the door section, which proved problematic during the pilot recording, as the doors refused to close.
The back of the set features a complicated structure containing the elevated scanner screen, perspex panels and what would later be identified as the fault locator. There’s also a curious mirrored column.
The central hexagonal control panel is surrounded by aluminium floor sections, alongside a “canopy suspended at +10ft”. This piece was so cumbersome, it would feature in few subsequent episodes. (For this November's BBC2 drama, An Adventure in Space and Time, which painstakingly re-creates this Tardis set, Mark Gatiss told me the canopy will be rendered via CGI.)
All four cameras (colour-coded by Waris) peeped through the section of the set that was left unbuilt – aka “the fourth wall” – primed for the long scene that takes up the latter half of An Unearthly Child.
As many Doctor Who fans will know, the Pilot episode, once completed, was deemed unsatisfactory. The script was revised and An Unearthly Child was recorded again, remounted on this same floorplan, on Friday 18 October 1963.
A massive thank you to Waris Hussein for his help with this feature.
Read all about An Unearthly Child in our Doctor Who Story Guide.
Both versions of An Unearthly Child are available in the BBC DVD box set, Doctor Who: the Beginning.