A US judge has said the actor who played Screech in the 1990s school sitcom Saved By The Bell must stand trial over a Christmas Day stabbing.

A US judge has said the actor who played Screech in the 1990s school sitcom 'Saved By The Bell' must stand trial over a Christmas Day stabbing.

Dustin Diamond, the actor who played Screech in the 1990s TV show Saved By The Bell, has appeared in court in Wisconsin.