I heard the Pink Floyd play 'Arnold Layne' in Bristol, way back in1968. Syd Barrett was on stage, but it is entirely possible that Dave Gilmour was 'covering' for him in the wings.
Good lightshow though.
Yeah bet those early days were great. I saw them in 1980 at Earls Court playing The Wall for the first time. The experience has never diminished. No one in all the intervening years has come anywhere near close to that experience.