The original host was comedian Mike Reid.

In 1977 his place was taken by Leslie Crowther and Stan Boardman, before Reid returned in 1978.

The ball in tube scoring was copied from the US version but with two colours; red worth one point for a correct answer and yellow worth two points for being the only contestant to choose the right answer (this was reversed in later series).

Metal Mickey made his screen debut on the British version of the show after being discovered by the show's in-vision researcher, Tim Edmunds.

The game was also incorporated into the two seasons of the short-lived ITV Saturday morning show Saturday Banana hosted by Bill Oddie from 1978.