I need to check out the addendum, but in the last few months (when walking dogs, or feeding the newborn - to answer my own question from last year) I've torn through the 2 Alexander episodes and the 6 Supernova in the East episodes. Good stuff. After Supernova I checked out the Pacific but it was made a little redundant since many of the horrors in the show are detailed in the podcast.

Now I'm just waiting around for the next Alexander episode to drop, hopefully later this year.