Tommy Cooper at the Golden Garter was an iconic show, it's the opening sequence on the biopic of him played by David Threlfall. I didn't go (a bit like York away) but my mate and his girlfriend did, the opening stage scene apparently:
"Ladies and Gentlemen, Mr Tommy Cooper"
Spotlight on a gate (it's an old sketch from Tv), no Tommy Cooper, the audience start giggling, then laughing, then crying with laughter, Tommy nowhere on stage at this point but he had the audience from that moment on.
He did have a very dark side as well.