I found this show at Hulu I think it is great.
John Doe is a mysterious man who rises from the water off an isolated island possessing knowledge of literally everything in the world, yet having no memory of who -- or even what -- he is. Doe quickly finds his way to Seattle, where he befriends the police and uses his special gift to help them solve "impossible" crimes each week while continuing his unending quest to uncover who he is and where he came from. Doe is joined in his search by Karen, his unwitting assistant and one of his few friends. Together they work to piece together the case of a missing girl who Doe mysteriously feels may have some connection to his previous life.
So if you can't find something to watch the whole first season is on Hulu.