So in The Deadly Assassin, a Tom Baker Doctor Who Episode that aired in 1977, we have:

A virtual battle between two minds taking place in an artificial computer environment made up of the intelligences of thousands of brains called the Matrix.

An ancient, evil enemy dressed in a black monks robe with dessicated, wrinkled skin, who is thrown into a pit during the final struggle in a techo-cathedral-like chamber at the center of immense power.

We may have to have a little talk with George Lucas and the Wachowski brothers...