Rewatched The Deadly Assassain yesterday for the first time in a long while. Is it the best classic Doctor Who episode? Could well be... The scenes in The Matrix were my introduction to surreal horror as a kid. I don't know how old I was when the clown in the mirror gave me a jolt. I'm guessing I was quite young but there's plenty in there to unnerve even an older child. Those scenes hold up very nicely 30 years later.