Some podcasts I've appreciated lately:
Enter the Void: Discussions with a writer from the New York Times about "mindf**k" movies. Usually insightful and pretty thorough conversations. I love the "genre" of film they talk about, and their shock at almost every film never gets old.
/Filmcast: As film discussion, it's spotty, occasionally interesting and occasionally banal. However, the recent discussion of Season 5 of Black Mirror was pretty good.
Throughline: A very good collection of news/history articles. Takes significant recent events or characters and tells the history of them with coherance and insight.
Rough Translation: Looks at important stories in the US from an international viewpoint. It could be getting a different perspective in another nation, seeing how a familiar event looks in a different culture, or how an event is based on circumstances outside the US. Good.
Anthropocene Reviewed: Essays by novelist John Green. Brilliantly written, he reviews, with stars, everyday things he has experienced, such as the prom, Velociraptors, Scratch 'n' Sniff stickers, Tetris. They are personal, hopeful, wistful, and delightful.
50 Things That Made the Modern Economy: More than 50 brief essays about how certain obejects-- some everyday, some not-- have created what life we take for granted. Short enough to be worth the time.