Sorry, but I don't think they are at that stage yet. It would be great if they releases their timewatch series programmes on DVD, but it is such a good series, they wouldn't know wher to stop. They'd also have a lot of other good candidate programmes.
Incidentally, the Timewatch web-page is at
http://www.bbc.co.uk/history/program...ch/index.shtml
and if you look in their archive, you'll see they have done quite a few naval programmes.
I hope you find a way to be able to see it. I am recording on VHS (not a DVD recorder), so I can't be much help.
All the best, Martin