Here a link to YouTube. There are several episodes of the History Channel's 'Battlefield detectives'.
http://www.youtube.com/results?searc...s&search_type=
Battle of Agincourt: 'Agincourt's Dark secret':
http://www.youtube.com/watch?v=ib8kGCFpJRo
and Hastings: 'Who got lucky at Hastings?':
http://www.youtube.com/watch?v=VBaqe...eature=related
(Off topic: Though not our time period 'Custer's last stand is especially interesting, since it is the only battlefield in the world were the death were buried where they died and modern technology allowed to reconstruct the real cause of the action.)
In addition to that here is a link with a number of interesting videos from the history channel! Including some short videos about different medieval weapons:
http://www.history.com/marquee.do?co...rquee_id=53127