I'm a big fan of podcasts. Unlike radio or TV, I'm not forced to listen at a specific time. I can listen whenever I want as time becomes available, which makes it great when I'm driving or on long walks. The only downside is also due to its upside: because a podcast is not done live I cannot interact in any way while the podcast is being recorded. It's not really much of a problem since I'm asocial, so I wouldn't try to call in anyways to a live show.