Knightmare was a fantastic childrens' adventure show that ran on British TV in the 1980s. A youngster, wearing a vision-blinding helmet, would be guided around a giant virtual reality castle by a team of his or her peers, which issued instructions from dungeon master Treguard's chambers. Though defined by its technical limitations, Knightmare built a cult following thanks to its pioneering blue-screen setup—hence the blindfolding—and merciless treatment of contestants. The Guardian's Ben Child interviewed creator Tim Child and star Hugo Myatt and found that the production was itself something of a bad dream. Embedded above is the show's intro and a short documentary about it. Then you may enjoy a a selection of deaths.