I know you're being facetious and poking fun at the redundancy of the phrase "Internet podcast" but now you have me thinking about how cool an offline podcast might be.

Maybe it would be distributed via physical dead drops on USB sticks, or pirate wi-fi networks beamed from disposable drones flown by courageous freedom fighters, or maybe it would be distributed via IP over avian carrier: http://tools.ietf.org/html/rfc1149

(In all seriousness, my very loose understanding is that in a lot of countries without robust Internet infrastructure, music is often traded directly from phone to phone. It's possible that podcasts or spoken-word messages are traded this way as well...)

Back when Alex Blumberg of Gimlet Media was Alex Blumberg of NPR he did an episode of a radio show (which was subsequently released as a podcast) about someone who owned patents for a proto-podcast service that was distributed on cassette tape. He was using those patents to claim he was owed licensing fees by modern day internet podcasters.

http://www.npr.org/blogs/money/2013/05/31/187374157/episode-...

http://gimletmedia.com/show/reply-all/about/ > Reply All is a show about the internet

podcast - Episodic content played on an iPod. So yes, you download podcasts and play them on your iPod, originally. A newer term is Netcast. I find it better because it removes the branding. :|