All episodes Season 21 S21E16 1984-03-02 25 min 1960s BBC

Doctor Who

Planet of Fire, Part Four

TV Flash files “Planet of Fire, Part Four” as hour 623 of 700 in the TV Flash guide — Doctor Who (1963–) on BBC, season 21, episode 16, aired 1984-03-02, 25 min.

From the desk

How this hour is filed

This leaf is S21E16: listed hour 623 of 700 in the Doctor Who guide, hour 16 of 24 in season 21. It aired 1984-03-02 (25 min). The listed hour before it is “Planet of Fire, Part Three” (S21E15). Next is “The Caves of Androzani, Part One” (S21E17). Broadcast log — titles and dates, not a plot bible.

Doctor Who — Planet of Fire, Part Four (S21E16)

Catalog log

Broadcast listing — not a TV Flash recap.

In order to complete his plan to bring himself back to full size after his accident with his tissue compression eliminator, The Master tries to destroy the Doctor. Turlough makes a decision and tells the Doctor why he was exiled to Earth.

Viewer FAQ

Where does Planet of Fire, Part Four sit in the Doctor Who guide?

S21E16 is listed hour 623 of 700 — hour 16 of 24 in season 21, season 21 episode 16.

When did Doctor Who S21E16 air?

Planet of Fire, Part Four aired 1984-03-02 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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Also in season 21

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