I want to recommend Luke Muelhauser’s Conversations from the Pale Blue Dot [iTunes] podcast on philosophy of religion and metaethics. The podcast does not always have the best sound quality, and Luke occasionally makes rookie mistakes like forgetting to turn off the intro music track, but he is a good interviewer, his discussions are deeper than most others I have heard in this medium, and his guest list is impressive, including such heavyweights as Graham Oppy, Wes Morriston, Evan Fales, Nick Trakakis, Erik Wielenberg, Andrew Melnyk, and our very own Taner Edis.