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Season guide

Mastermind: 1974

17 episodes Premiered Sep 5, 1974 Updated Sep 26, 2026
Previously on Mastermind

Season 3 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of Mastermind Season 2.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.
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Season 3 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 3 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 3: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

41%
59%
Mytharc (7): Crucial lore & season climaxes
Core (10): Character development & subplots
Side Quest (0): Standalone / filler
S3·E1 Mytharc

Episode 1

Sep 5, 1974

Introduced by Magnus Magnusson from University of York Are you sitting comfortably in your chair, or do you think you should be in the chair of the 'Mastermind'? Well over 2,500

S3·E2 Mytharc

Episode 2

Sep 12, 1974

Introduced by Magnus Magnusson from University of York Four more contestants use their specialist and general knowledge, together with their ability of quick recall and concise an

S3·E3 Core

Episode 3

Sep 19, 1974

A chance for you at home to compare your score with the experts in this third match of the series, from Westfield College, University of London.

S3·E4 Core

Episode 4

Sep 26, 1974

Introduced by Magnus Magnusson from Westfield College, University of London Another chance for you at home to match your general, and perhaps specialist, knowledge against that of

S3·E5 Mytharc

Episode 5

Oct 3, 1974

The University of Stirling in Scotland is the venue for another heat of Mastermind, a competition requiring both specialist and general knowledge, and, as time is of the essence, a

S3·E6 Core

Episode 6

Oct 10, 1974

The group of contestants representing Northern Ireland meet at Stirling University tonight for the sixth heat. They are: Andrew Hemphill, schoolteacher; Mary Lawrence, housewife;

S3·E7 Core

Episode 7

Oct 17, 1974

Tonight's programme comes from Warwick University, and the group representing the Midlands are: PETER MORRIS , schoolteacher MARGERY NICHOLLS , part-time schoolteacher REV PHILIP

S3·E8 Mytharc

Episode 8

Oct 24, 1974

Tonight sees a return to Warwick University where once again a group of Midlanders will be challenging for this year's title of Mastermind. Contestants are: DEREK ALLEN , publisher

S3·E9 Mytharc

Episode 9

Oct 31, 1974

Swansea University provides the venue for this week's Mastermind. Contestants are: RUPERT CAPPER , pension specialist MRS ELIZABETH HORROCKS , housewife, DAVID HUMPHRY , assista

S3·E10 Core

Episode 10

Nov 7, 1974

The four contestants tonight are from the South West of England: MARTIN GOSTELOW , photographer MRS JENNY GRAVES , landscape architect REV JOHN STARK, Anglican priest MRS HILAR

S3·E11 Core

Episode 11

Nov 14, 1974

Tonight's programme comes from the University of East Anglia at Norwich and the contestants representing the South East are: KEITH HASKELL, diplomatic service MISS OONAGH LAHR ,

S3·E12 Core

Episode 12

Nov 21, 1974

The group of contestants representing the East of England meet tonight at the University of East Anglia, Norwich. They are: KEITH CROSSWELL , clerk MARTIN DAKIN, retired schoolma

S3·E13 Core

Episode 13

Nov 28, 1974

The first of the Semi-Final matches comes from the University of Surrey at Guildford SUSAN REYNOLDS (North West) FREDERICK BRYAN-BROWN (London) MARGERY NICHOLLS (West Midlands)

S3·E14 Core

Episode 14

Dec 5, 1974

The second Semi-final match comes from the University of Surrey at Guildford and the contestants are: MARTIN DAKIN (East) ANDREW HEMPHILL (Scotland) CAROLYN PEARCE (South East)

S3·E15 Core

Episode 15

Dec 12, 1974

he third Semi-final match comes from the University of Surrey at Guildford and the contestants are: IAN CLARK (East Midlands) ELIZABETH HORROCKS (Wales) DOUGAL PURVES (Scotland)

S3·E16 Mytharc

Episode 16

Dec 19, 1974

The four best runners-up from the heats meet tonight in this special semi-final match. One of the four will go forward into the final. RUPERT CAPPER (Wales) MARTIN GOSTELOW (Sout

S3·E17 Mytharc

Episode 17

Dec 23, 1974

The climax of Mastermind 1974 is at Manchester University where four finalists meet to decide the title. In the last two series the ladies have taken the honours. Will they succeed

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