Crystal Maze VHS
Since so many people seem to have asked over some time I shall just say, yes there is a crystal maze video. It is called "The best of the Crystal maze" and was released in 1994.
Runs for about 150 mins and contains 3 of the best adult shows and the two children specials.
You can buy these, but don't try Amazon.co.uk or .com because they seem to think it's worth around £50. If you look on ebay one or two copies appear every so often for quite reasonable prices.