I'm not as much of a history buff as a couple of people I know, but I do have an interest in history and historical items. Because of this I enjoy Time Team whenever I can get to watch it. The show is interesting, and there are some cool things on their site too.
A couple of pieces of trivia, for anyone who doesn't know and is interested:
The presentor of Time Team, Tony Robinson, reads the abridged versions of the Terry Pratchett audiobooks (and reads them well too, in my opinion). Also, he is 64 years old.