All episodes Season 13 S13E08 1975-10-18 25 min 1960s BBC

Doctor Who

Planet of Evil, Part Four

TV Flash files “Planet of Evil, Part Four” as hour 409 of 700 in the TV Flash guide — Doctor Who (1963–) on BBC, season 13, episode 8, aired 1975-10-18, 25 min.

From the desk

How this hour is filed

This leaf is S13E08: listed hour 409 of 700 in the Doctor Who guide, hour 8 of 26 in season 13. It aired 1975-10-18 (25 min). The listed hour before it is “Planet of Evil, Part Three” (S13E07). Next is “Pyramids of Mars, Part One” (S13E09). Broadcast log — titles and dates, not a plot bible.

Doctor Who — Planet of Evil, Part Four (S13E08)

Catalog log

Broadcast listing — not a TV Flash recap.

The Doctor tries to convince Sorenson to sacrifice himself for the rest of the crew but Salamar's attempt to deal with the situation causes their problem to multiply.

Viewer FAQ

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

S13E08 is listed hour 409 of 700 — hour 8 of 26 in season 13, season 13 episode 8.

When did Doctor Who S13E08 air?

Planet of Evil, Part Four aired 1975-10-18 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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