The Peaches and Hot Sauce podcast network show "One Shot" is a high quality recording of role playing live play. The systems vary but in this circumstance, they played Call of Cthulhu, and enjoyably, the players played Indiana Jones, The Doctor (Who), Batman, Tom Riddle, and James Bond fighting the cults of Cthulhu.
I picked up a recommendation to this podcast from an ad on great game podcast Ken and Robin Talk About Stuff. This is one of the few "live play" podcasts that I was excited to listen to all the way through. I even laughed a few times.
The play had the feel of improvisational acting rather than the monotony that live play sometimes sinks into. I listened to all 2 plus hours at once, and I didn't want to stop once I started. I also recommend the Scooby Doo/Call of Cthulhu Mashup. They also do loads of other games as well. (Dread, Everyone is John, Star Wars, etc)
Pulp Cthulhu Part 1
Pulp Cthulhu Part 2
