Podcasts on my Stitcher feed:
Dan Carlin’s Hardcore History
American History Tellers
Dangerous History Podcast
History Impossible (notice a pattern?
?)
Inward Empire
Mission Log: A Roddenberry Star Trek Podcast
The Beatles Naked
Something About The Beatles
This American Life
The Al Franken Podcast
Wicked Game: American Elections
Beatles City
Fall of Civilizations
There are a few others, but these get the most spins....