Got to be Knightmare
See the official site here
Yee god it was amazing.
To briefly explain to all none brits out there, Knightmare (and that is knightmare with a k), was a kids game show from the late eighties and early nineties themed around a D&D type dungeon, with a dungeon master called Tregard.
The dungeon was computer generated onto blue screens, so the dungeoneer, (the one in the dungeon), couldn't actually see it. The dungeoneer, him or herself however wore what was called the helmet of justice which made almost blind, unable to see the objects below them, or the blue screens the dungeon was generated on.
So, if the dungeoneer couldn't see how did they get around the dungeon? Easy, they had a team of advisers, who could see where they were through a magic mirror, and could see the dungeon around them. It was the job of the advisers to describe the room, any hazards like monsters or traps, and guide the dungeoneer through it, picking up clues along the way and dealing with evil wizards, goblins and other nasties.
Here is a full episode
Talk to anyone who grew up in the eighties/nineties in Britain with an interest in that sort of thing, and they'll tell you just how bloody scary and down right awesome Knightmare was, especially with how they intigrated the technology at the time, indeed its interesting that even though these days cg technology has massively improved, nobody has done anything quite like it.
The acting, the atmosphere, the tech, it all came together, especially in season 3 when they got Lord fear, the most fantastically evil and sarcastic villain ever!
Actually, I've always thought that Knightmare would make a pretty amazing audio game in the vane of pappasanga, what with you having to hear and avoid hazards and the like, though nobody's ever done that yet sadly.
With our dreaming and singing, Ceaseless and sorrowless we! The glory about us clinging Of the glorious futures we see,
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)