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
- Season 16 1988-01-07
- 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
- Season 24 1996-05-29
- Season 25 1997-06-09
- Season 30 2003-07-07
- Season 31 2004-06-21
- Season 32 2005-03-08
- Season 33 2006-03-30
- Season 34 2007-07-09
- Season 35 2008-09-05
- Season 36 2009-08-28
- Season 37 2010-08-20
- Season 38 2011-11-04
- Season 39 2012-08-10
- Season 40 2013-08-09
- Season 41 2014-08-08
- Season 42 2015-08-07
- Season 43 2016-07-13
- Season 44 2017-07-28
- Season 45 2018-10-05
- 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 9 Episode 1
- Season 9 Episode 2
- Season 9 Episode 3
- Season 9 Episode 4
- Season 9 Episode 5
- Season 9 Episode 6
- Season 9 Episode 7
- Season 9 Episode 8
- Season 9 Episode 9
- Season 9 Episode 10
- Season 9 Episode 11
- Season 9 Episode 12
- Season 9 Episode 13
- Season 9 Episode 14
- Season 9 Episode 15
- Season 9 Episode 16
- Season 9 Episode 17
Mastermind - Season 9 Episode 17 Final
5.40 30 minutes The historic Porter Tun Room in the City of London is the setting for the culmination of the 1980 series. Of the 48 starters, the four finalists competing for the beautifully engraved Caithness glass trophy and the title of Mastermind 1980 are:
Fred Housego (licensed taxi-driver): The Tower of London
John Keogh (postgraduate student): The House of Godwin 1016-1066 Samuel Mortimer (civil servant): The life and works of Joseph Haydn Ingram Wilcox (civil servant): The Crusades 1095-1192
