I'm a podcast addict.
I prefer podcasts that are not too snarky or sarcastic.
At the moment one of my favourites is the Kermode and Mayo film review. Apart from the excellent film reviews, there's something so soothing listening to the two hosts joking and arguing with one another and often just talking sheer nonsense.
Also love "Imaginary Worlds" which explores various aspects of fantasy and science fiction, books, films, games, anything, really. Some truly excellent episodes, like the one on "World War EVE"
99% Invisible has a ton of fascinating episodes on design. Lately I've found the episodes not quite so gripping but their archive of older episodes is great.
Some other favourites: West Wing Weekly, The Allusionist, Homecoming, Lexicon Valley.
What are you listening to?