This show covers many topics ranging from wars to candy to beer. It's cool, and very easy to follow, not one of those boring black and white shows. Very nice pictures as well, and they show you exactly what's going on.
I don't watch this whenever I get the chance, but if there's nothing else, I'll tune in. It's informative, detailed, and most of all NOT boring. The topics are not bad either, it mostly the topic that judges the episode. Basically, if you don't like the topic, you won't like the episode, and vise versa.
Overall, this isn't some show where I'd catch every episode whenever I get the chance, but it's worth it when I do.