Do you mean "Hitler's Lost Sub" ? It was a Nova special and is available from
www.pbs.org. BTW "Shadow Divers" is out in audio book form and includes a recent interview by Robert Kerson with Ritchie and John. When asked if they still dive the sub, John does not, but Ritchie does do an annual dive but just scouts the debris field for things they might have missed. He also stays in contact with families of the crew. One other thing that floored me was Ritchie first learned of John's war record when he read the book! It was also my pleasure to hear John speak at a NJ Historical Shipwreck Divers symposium last year. He brought along outtakes from Deepsea Detectives that were quite hilarious and showed what a special relationship he has with the crew, Ritchie, and the late Michael Norwood. The man is a living legend.