Season
- Season 0 1976-01-01
- Season 1 1972-09-11
- Season 2 1973-09-03
- Season 3 1974-09-05
- Season 4 1975-09-04
- Season 5 1976-09-07
- Season 6 1977-08-30
- Season 7 1978-09-07
- Season 8 1979-09-05
- Season 9 1980-08-31
- Season 10 1981-09-06
- Season 11 1983-01-09
- Season 12 1984-01-29
- Season 13 1985-01-06
- Season 14 1986-01-12
- Season 15 1987-01-04
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- Season 17 1989-01-15
- Season 18 1990-01-07
- Season 19 1991-01-20
- Season 20 1992-02-16
- Season 21 1993-01-10
- Season 22 1994-03-20
- Season 23 1995-04-09
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- Season 25 1997-06-09
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- Season 34 2007-07-09
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- Season 46 2019-08-09
- Season 47 2020-10-05
- Season 48 2021-08-23
- Season 49 2022-09-19
- Season 50 2023-08-28
- Season 51 2024-08-12
- Season 52 2025-07-14
Season 52 Episode
- Season 4 Episode 1
- Season 4 Episode 2
- Season 4 Episode 3
- Season 4 Episode 4
- Season 4 Episode 5
- Season 4 Episode 6
- Season 4 Episode 7
- Season 4 Episode 8
- Season 4 Episode 9
- Season 4 Episode 10
- Season 4 Episode 11
- Season 4 Episode 12
- Season 4 Episode 13
- Season 4 Episode 14
- Season 4 Episode 15
- Season 4 Episode 16
- Season 4 Episode 17
Mastermind - Season 4 Episode 13
5.40 30 minutes Manchester University provides the venue for this semi-final, the first of four, one of which is reserved for the four best runners-up.
Tonight's semi-finalists and their special subjects are:
STEVEN SCHNEEBAUM, law student, United States Constitution JOHN HART, schoolmaster, Rome and Romans: 1st Century BC MARTIN MCCLELLAND, sheet-metal worker, British Military Campaigns: 1700-1815
DAVID BURNS, Local Government officer, Life and Reign of Richard III
The winner of this match will go forward into the final.
