John Chatterton is one of the world’s most accomplished and well known wreck divers. Together with Richie Kohler, he was one of the co-hosts for the History Channel’s 'Deep Sea Detectives' where they have completed work on 57 episodes of this successful series. Wikipedia*
On the C-SPAN Networks:
John Chatterton has one video in the C-SPAN Video Library; the first appearance was a 2008 Forum.