Season
Concentration
0.00 48 minutes Concentration originally aired from 16 June 1959 to 7 June 1960 by Granada and was hosted by Barry McQueen in 1959.
It was later revived by TVS from 4 September 1988 to 1990, hosted by Nick Jackson and Bob Carolgees.
Both versions were shown on ITV, while the American version with Alex Trebek was also shown by Sky One in the 1990s.
