The gibberish between "I'm So Tired" and "Blackbird" on the White Album does seem to say "Paul is dead, miss him, miss him" if spun backwards.... back when that was possible
Finally, the "Number 9" count patched in repeatedly on Revolution #9 does sound like "Turn me on, dead man". Again, when spun backwards.
What I've always wondered is, did the Beatles institute this out of boredom, etc. or were these simply odd coincidences......
