“The heart of the machine is under the column”
The Edge of Destruction (1964), written by David Whitaker
In this First Doctor story, set virtually fully inside the TARDIS, a sequence of unusual occasions makes everybody tense and agitated. Come the finale, because the Doctor pronounces they’re getting ready to destruction, Barbara realises one thing. The ship, the TARDIS itself, has been giving them clues. That’s what the unusual occasions have been.
The Doctor, curiously, insists that the TARDIS can not assume, however states that its energy supply is beneath the central column on the console. The thought of the TARDIS being sentient, and the significance of its energy supply beneath the console, are developed additional within the post-2005 sequence (particularly Neil Gaiman’s ‘The Doctor’s Wife’) and turns into an important plot level on the finish of sequence one (in each ‘Boom Town’ and ‘The Parting of the Ways’).
“No, they have been recognised on Planet 14”
The Invasion (1968), written by Derrick Sherwin
Tobias Vaughn, head of an electronics firm, helps the Cybermen invade Earth. Talking to a Cyber-Planner (a computer-brain with a present for technique), they have a look at safety pictures of the Second Doctor and Jamie. The Planner recognises them from “Planet 14”, which makes Vaughn query how they might have been on one other planet.
Viewers with good reminiscences might need been watching this in 1968 and pondering ‘Hang on…when were they on Planet 14?’, as a result of this was the primary anybody had heard of it. Given the Doctor and Jamie had met the Cybermen onscreen 3 times at this level, the truth that Derrick Sherwin gave them one other encounter has led writers to attempt to fill within the gaps, notably Grant Morrison of their 1987 sketch ‘The World Shapers’ and Steven Moffat in ‘The Doctor Falls’, the place he suggests parallel evolution of various Cybermen, making them adherents of a repeated meme.
