John does a terrific job impersonating Curly Howard in an episode of 'SCTV' from November 21, 1977 . John, Eugene Levy (as Moe) and Joe Flaherty (as Larry) play 'The Three Stooges' under the name 'The Three Dummies'. The butler and maid are played by Dave Thomas and Andrea Martin and the society lady is played by Catherine O'Hara. In this 'SCTV' episode 'The Three Dummies' is part of the kiddie show 'Muley's Round House' hosted by embittered and paranoid switchman Muley, played by Harold Ramis.
Everyone does a good job in this skit but John's imitation of Curly is so spot on that you think you're actually looking at Curly Howard. From the high-pitched voice to the beautifully timed gestures; it's all there!