Some of the most influential modern comedy in any medium was created for radio: “Who’s on First?“, Groucho Marx’s You Bet Your Life, The Jack Benny Program, BBC’s The Goon Show and I’m Sorry, I’ll Read That Again, The Firesign Theatre. And it has always been a fertile format for experimentation (because it’s cheap). Sam Corbin explores why audio sketch comedy lands like nothing else — and wonders why, in the podcast boom, we aren’t getting more of it. – Vulture