How does iTunes calculate popularity? I figured Opie & Anthony's podcast would do well, but this doesn't seem right for a placeholder that hasn't even really been promoted that much: EDIT: iTunes displays the Top Episodes and Top Podcasts based on a combination of recent subscriptions, downloads, and customer reviews. It's the recent subscriptions doing it. It'll take a few weeks to see where they settle in. On the podcast app itself, they're in 4th place behind Maron, Carolla, and some show I've never heard of, but just ahead of Joe Rogan and Ricky Gervais.