I guess the ist big 50 was the 50th ann. of John and paul meeting. I remeber there were a few things on the radio inc. what for me was the startling revelation of an audio recording of some of The Quarrymen's set. I had no idea there was tape of that but apparently there was!!! The next big one is going to be next year with the 50th ann. of Love me do...then we're off and running for the next 8yrs.!!