They were showing this on Animal Planet Monday night. The camera crew was actually filming during the rescue. Steve was quick to point out that he wasn't the hero of the day, just the guy who happened to be in the right place to help the stranded diver.
It was an extremely emotional episode, but there was a little bit of comedy in the fact that the rescued American had no idea who Steve was. He'd never seen any of his programs, so he was completely clueless.