Charles Lee and Frank Ling host a show on KALX 90.7FM in the San Francisco Bay area called The Berkeley Groks Science Show. I’m always on the look out for downloadable science content to go jogging with and they’ve recently started posting MP3s of their show along with a RSS feed so you can subscribe, download or get their shows from the internet archive. The older shows are located here. Our show will be out soon, promise!