Ewe:  Obviously, from Jim Dandy's post, it started in 1966.  I didn't really pay much attention to it until somewhere in the 70s, when a radio station did a comprehensive 1 hour show on the story.  But, I looked at early pictures of Paul (which could, of course, been contrived), and pictures of him later, listened closely to early recordings, and Sargeant Peppers and decided it was just a rumor.  I haven't given it anymore thought.  Maybe it's the world's longest case of denial, I don't know.  I guess we all vote our conscience on it.