I think I've said this before, but my most memorable Floyd moment was when I saw them at Knebworth (UK).
Big crowd all milling about and making a noise, waiting for the band to appear. There was then a gradual hush as the distinctive noise of a diving Spitfire came from the direction of the setting sun.
The crowd turned round to watch the approach, and cheered as it roared overhead (bloody low) , past the stage and carried on out of sight.
It was then we noticed that the band had sneaked onto the stage while we were looking the other way. They launched straight into the first number, with perfect timing.
A brilliant entrance and a wonderful evening.
30 years ago, eh?..............