I know it's not quite on the topic: have you tried Dan Carlins Hardcore History? His last episode was 5hrs 12min long and was about the Persian invasion of Greece. And that was the third episode about Persia.
For KDM try Darker Days.
Yup, the Darker Days Radio spin off show, Network Zero is where we put out our KDM shows. Right now we are working through the monsters slowly and looking at the tactics to approaching them and the things you can make from them etc.