All episodes Season 9 S09E21 1972-05-20 25 min 1960s BBC

Doctor Who

The Time Monster, Part One

TV Flash files “The Time Monster, Part One” as hour 324 of 700 in the TV Flash guide — Doctor Who (1963–) on BBC, season 9, episode 21, aired 1972-05-20, 25 min.

From the desk

How this hour is filed

This leaf is S09E21: listed hour 324 of 700 in the Doctor Who guide, hour 21 of 26 in season 9. It aired 1972-05-20 (25 min). The listed hour before it is “The Mutants, Part Six” (S09E20). Next is “The Time Monster, Part Two” (S09E22). Broadcast log — titles and dates, not a plot bible.

Doctor Who — The Time Monster, Part One (S09E21)

Catalog log

Broadcast listing — not a TV Flash recap.

UNIT are invited to observe a demonstration of the new TOMTIT machine, unaware its creator, Professor Thascales, is actually the Master.

Viewer FAQ

Where does The Time Monster, Part One sit in the Doctor Who guide?

S09E21 is listed hour 324 of 700 — hour 21 of 26 in season 9, season 9 episode 21.

When did Doctor Who S09E21 air?

The Time Monster, Part One aired 1972-05-20 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.

Open the Doctor Who package · Season 9 hub

Filed against

Also in season 9

← Full episode guide · Show package · All shows