S1.E1 ∙ Episode #1.1Sun, Sep 10, 1972A long-running series in which members of the public sit in a black chair to answer questions on a specialist subject and general knowledge.Rate
S1.E12 ∙ Semi-Final 1Sun, Dec 3, 1972The first of the semi-finals, featuring four of the 11 first-round winners.Rate
S1.E13 ∙ Semi-Final 2Sat, Dec 9, 1972The second semi-final, featuring four of the 11 first-round winners.Rate
S1.E14 ∙ Semi-Final 3Sun, Dec 17, 1972The third semi-final, featuring the remaining three of the 11 first-round winners.Rate