I'm not easily interested or impressed by jock-type things, to put it mildly. National Geographic somehow manages to provide a programme that I would happily watch alongside people who are very different from me. This, called "Fight Science", goes into the physics of martial arts and is beyond awesome. It's about an hour and a half, so be prepared to devote some time for it (or download it).
(around the 1 hour mark, they discuss the Bõ, which was my favourite weapon when I was learning some flavour of kenpo, ages ago - I would've happily just learned Bõ and skipped or skimped on the rest - they show a really interesting 3-part staff after that)