[virometal]

Dan Carlin's Hardcore History
Filmjunk
Filmspotting
IGN DVD Digigods
The Movie Club Podcast

are my current staples; probably be a different list in six months.

 

[HONEYBOY]

NPR Car Talk
Ted Talks (video version)
Radio Lab

 

[invisiman]

Harvard Business Ideacast was the only one I ever got into. Not a huge listener of podcasts as I have a hard time paying attention to them the whole way through, but I had some success with this one, particularly when I listened to it while in the shower.