It was the tenth to be produced and was the sixth episode to be broadcast in the UK on ITV (ATV Midlands and Grampian) on Friday 3 November 1967.
Number Six – along with the rest of the population of the Village – is subjected to a new mind-altering education technology called "Speed Learn" which can instill a three-year university-level course in history over a television screen in just three minutes.
Number Six finds a tape recorder in which the professor's true feelings are revealed, mysteriously discarded on the beach.
He witnesses the professor, after being recaptured, proceeding with the education programme which instills a detailed, but fairly sterile, set of data on "European history since Napoleon" into all Village residents' minds.
Number Six discusses art with the Professor's wife, who claims she and her husband came "voluntarily", while he finishes sketching her in a general's uniform.
He searches her lodgings, finding busts carved of him and of Number Two, and smashes a lifelike effigy representing the sleeping Professor.
The "General" is revealed to be a sophisticated, experimental mainframe computer which has purportedly been programmed to be able to answer any question put to it.
He describes the ending as "[fitting in] well with the subtext of the series", but also say "the revelation that 'The General' is a powerful computer is a stock science fiction device.