Podcasts are radio- and TV-style shows you can download from the Internet.
You can download free podcasts from the iTunes Store. You can also subscribe to podcasts (for free) so that new episodes are automatically downloaded as they become available. (Some websites charge a fee for podcasts.)
Podcasts are different from Internet radio stations, which stream live content over the Internet. Podcast episodes are downloaded to iTunes on your computerâ€”and you can add them to your iPodâ€”so that you can play them when you’re not connected to the Internet.