Walker, Texas Ranger, or Michael Knight in Knight Rider?

Or how about Jean Luc Picard in ST:TNG? It even got so bad that they kept him going by rebooting the universe.

Looking at it a different way: the lead character from Infinity Blade: no matter how often he died, he was resurrected on the table until he actually won (at which point he essentially became the man he had spent eternity attempting to destroy).