"A podcast where musicians take apart their songs, and piece by piece, tell the story of how they were made." @ http://songexploder.net/
I sort of wish there were more technical details as a rule, but it's understandable given the relatively short format that they can only cover so much ground. I'd prefer longer episodes personally, but I suppose not everyone might, and there's tradeoffs in producing more content. I guess I'm just glad that the show caught on and is still going strong.
Protip: sample the guest's clips they put on his show :) I've gotten some really great material from this show sonically since most of them seem to be the individual instrument tracks.