My brother has been listening to econ-talk, and more recently focused on Bryan Caplan episodes. He likes them a lot. I love econ-talk, but I've watched/listened to everything Bryan Caplan has on the internet, and my favorite interview with him is on Rationally Speaking: Does Parenting Matter.
My other favorite other things Bryan Caplan are his Night Watchman State talk, his liberty vs efficiency debate, and his Separation of Health and State Debate.
