I have been scouring the internet trying to figure this out. I remember an episode where a man was sitting with his wife and suddenly blurted out the answer to a really complex math problem. He had no idea how he knew it. I think he was in an accident or got struck by lightning and was psychic after that. I thought it was on one of the DVD sets but I seem to be wrong. Any help would be appreciated. Unless I am nuts.

You're not nuts.. His name was Tom Sawyer. :)

His case was featured together with a girl that drowned I belive. Search Unsolved Mysteries Life after death on the forbidden site and you'll find it.

That's a good episode. I do believe he passed away a few years ago. May he rest in peace, and hopefully Heaven let him in this time. :)