How Many Beatles 'Reunions'?

OK, just to get this going, I've always wanted to start this thread, and everyone can throw in whatever theyve heard or read. But heres the question: How many times have three or more Beatles gotten 'back together' for something or other? My memory was jogged when reading the 'wives say hello' topic. George wanted Paul and Ringo and he to run together for the Natural Law Party, to be PMs! I think this was in the early 90s; Olivia talked him out of it. Paul told him George didnt want that kind of responsibility!
There was Eric Claptons wedding reception in 1977, where Paul, George and Ringo played some oldies as well as, reportedly, "Sgt. Pepper"!
I know there were several others, but they totally slip my memory. Well, theres John, George and Ringo playing together for Johns "Plastic Ono Band" LP. But who can name some others they've heard about?

[size="1"][ Oct 25, 2003, 05:21 AM: Message Edited By: joelcrowservo ][/size]