Started Hardcore History yesterday. Started with the Blue Print to Armageddon four part series. Really good. I am four hours into it in two days.
He does a good job of conveying a crap load of historical info in a very interesting manner.
Makes me wish I paid a bunch more attention to HS history class.
It's the best. And I graduated with a degree in history from Kansas State (phi beta kappa) so I can be considered quite an authority on history podcasts. Dan is the greatest. Because they're so long (the latest Countdown to Argmageddon is 4.5 hours
) it can be a lot to digest at once. I try to save them for my trips to and from KC/Champaign.
He also has something of a current events podcasts that usually get released once every 2-3 weeks which are also very good. It's more of a commentary from him, but they're great if you want some more Dan Carlin in between the HH shows.