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Season 5: Taranium Core

In a screenshot from the newly-recovered episode 3 of The Daleks' Master Plan, The Doctor and Steven are standing on the flight deck of the Spar.  The Doctor hands Steven an object, which might have originally been the taranium core of the Time Destructor, but which now seems to be his 500 Year Diary,  with the podcast logo on the cover.

Terry Nation was born on 8 August 1930 in Cardiff, and is most famous for being the creator of Doctor Who’s mortal enemy, the Daleks, and somewhat less famous for being the creator of Survivors (1975) and Blake’s 7 (1978).

Terry Nation started his career as a stand-up comedian, and wrote hundreds of comedy scripts for radio and television, including, famously, several episodes of Hancock (1963). However, it was his science-fiction adaptations in Out of This World (1962) that brought him to the attention of Doctor Who script editor David Whitaker.

Nation wrote the first four Dalek stories for the Hartnell Era — The Daleks (1963), The Dalek Invasion of Earth (1964), The Chase (1965), and The Daleks’ Master Plan (1966). After a seven-year absence from the show, Nation returned in 1973 with Planet of the Daleks (1973), and wrote three more Dalek stories after that — Death to the Daleks (1974), Genesis of the Daleks (1975), and Destiny of the Daleks (1979). He also wrote two non-Dalek stories — The Keys of Marinus (1964), and The Android Invasion (1976).

Apart from his involvement in Doctor Who, Nation was a prolific television writer, writing episodes for the sort of shows we ended up watching on Bondfinger, including The Persuaders!, The Saint, The Avengers, and The New Avengers. In 1980 he moved to Los Angeles, where he wrote scripts for MacGyver and A Fine Romance.

So productive was Nation’s writing career that people have sometimes been tempted to dismiss him as a hack. But Nation was a gifted professional writer who could be relied on to produce interesting ideas, compelling set pieces and exciting action sequences. In Season 5 of 500 Year Diary, we’ll be reclaiming the word hack, and finding new ways to respect Nation’s work not just as a scriptwriter but as someone with a credible claim to have laid the very foundations for what Doctor Who became.

Saturday 21 December 1963

The Daleks

Captures and Escapes and Reversals

Taranium Core, Episode 1
Sunday 16 August 2026

Doctor Who has barely even started when the writer of Episode Five shows up and decides to take the show in a whole different direction. That writer was Terry Nation, and that episode, or possibly the one after that, will change the world forever.

Taranium Core, Episode 1: Captures and Escapes and Reversals (The Daleks)

Recorded on Sunday 24 May 2026 · Download Captures and Escapes and Reversals (66.7 MB) · Transcript for Captures and Escapes and Reversals
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Saturday 11 April 1964

The Keys of Marinus

Splitting the Party up for No Reason

Taranium Core, Episode 2
Sunday 23 August 2026

Terry Nation has left the Daleks at home this week, but he’s still bristling with so many ideas that the TARDIS crew rush through no less than five mini-stories in six weeks, proving that while the sea-bathing on the planet Marinus is basically lethal, there’s still a lot there to keep the tourists occupied.

Taranium Core, Episode 2: Splitting the Party up for No Reason (The Keys of Marinus)

Recorded on Sunday 24 May 2026 · Download Splitting the Party up for No Reason (59.8 MB) · Transcript for Splitting the Party up for No Reason
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