This is the FIRST EVER episode of The Crystal Maze. It was a British game show, produced by Chatsworth Television and shown on Channel 4 in the United Kingdom between 15 February 1990 and 10 August 1995. There was one series per year, with the first four series presented by Richard O'Brien and the final two by Ed Tudor-Pole, who made his debut in the 1993 Christmas special. Each show was one hour long, including adverts.