I started listening to this podcast a couple of weeks ago. I can’t get enough.
I remember driving all over Japan a few years ago, listening to the series about the Byzantines by Lars Brownworth, a prof, who is doing one on the Normans. Driving around the US last summer I listened to How the Irish Saved Civilization, by Thomas Cahill.

He’s got a much more conversational style than Brownworth, and jumps all over the place. He is at the top of iTunes Podcast list, for a good reason. I just wish I had more time. Next for me: #49 The American Peril. He also does series, such as the ones about Mongolia and the Khan. Well worth the listen.