| Concentration | |
|---|---|
| Genre | Game show |
| Presented by | David Gell (1959) Chris Howland (1960) David Gell (1960) Nick Jackson (1988) Bob Carolgees (1989–90) |
| Country of origin | United Kingdom |
| Original language | English |
| No. of series | 1 (Granada era) 2 (TVS era) |
| No. of episodes | 70 (Granada era) 23 (TVS era) |
| Production | |
| Running time | 30 minutes (inc. adverts) |
| Production companies | Granada (1959–60) TVS in association with Mark Goodson Productions and Talbot Television (1988–90) |
| Original release | |
| Network | ITV |
| Release | 16 June 1959 – 7 June 1960 |
| Release | 4 September 1988 – 2 March 1990 |
| Related | |
| Concentration (US version) | |
| Infobox instructions (only shown in preview) | |
Concentration originally aired from 16 June 1959 to 7 June 1960 by Granada and was initially hosted by David Gell from its inception in 1959 (Chris Howland and David Gell each hosted in 1960).
It was later revived by TVS from 4 September 1988 to 2 March 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.