All episodes Season 12 S12E17 1975-04-19 25 min 1960s BBC

Doctor Who

Revenge of the Cybermen, Part One

TV Flash files “Revenge of the Cybermen, Part One” as hour 398 of 700 in the TV Flash guide — Doctor Who (1963–) on BBC, season 12, episode 17, aired 1975-04-19, 25 min.

From the desk

How this hour is filed

This leaf is S12E17: listed hour 398 of 700 in the Doctor Who guide, hour 17 of 20 in season 12. It aired 1975-04-19 (25 min). The listed hour before it is “Genesis of the Daleks, Part Six” (S12E16). Next is “Revenge of the Cybermen, Part Two” (S12E18). Broadcast log — titles and dates, not a plot bible.

Doctor Who — Revenge of the Cybermen, Part One (S12E17)

Catalog log

Broadcast listing — not a TV Flash recap.

The Time Ring returns The Doctor, Sarah and Harry to Nerva Beacon thousands of years before they left. Where the Doctor, Sarah and Harry find the Beacon's crew have been wiped out by a space plague, only to discover the crew have been murdered by a cybermat and the culprits are the Cybermen and geologist Professor Kellman who bid to wipe out "Voga" a planet of gold, home of the subterranean Vogans who defeated the Cybermen in a war.

Viewer FAQ

Where does Revenge of the Cybermen, Part One sit in the Doctor Who guide?

S12E17 is listed hour 398 of 700 — hour 17 of 20 in season 12, season 12 episode 17.

When did Doctor Who S12E17 air?

Revenge of the Cybermen, Part One aired 1975-04-19 and is listed at 25 minutes.

Where should I start with the 1960s serials?

William Hartnell's First Doctor is the origin of the TARDIS-and-companions contract. Patrick Troughton's Second Doctor is the proof that regeneration works. Start at a serial whose surviving episodes interest you; missing-episode gaps are part of the classic-era weather.

In the series

Why this series still plays

A Time Lord, a police box bigger on the inside, and regeneration as infinite franchise life: Doctor Who launched from the BBC in 1963 and never really parked. Early black-and-white serials built the mythology; Hartnell-to-Troughton proved the lead could change without ending the show. The longest experiment in serialized reinvention — woolly, weird, endlessly renewable.

November 23, 1963, is a drop that never really parked. BBC's *Doctor Who* launched a Time Lord and a blue police box bigger on the inside, then treated the lead as renewable inventory. **Regeneration is the window.** Sydney Newman, C. E. Webber, and Donald Wilson were among the early architects. Early black-and-white serials built the mythology; companions, sonic screwdrivers, and cliffhangers became ritual. Rex wants woolly national inheritance. Fine. The business model is recasting without ending the show.

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