Ah go ahead and do the PhD! I am in the middle of a program myself! I highly recommend a British PhD based on the Cambridge system. It is 100% research and writing, no class work. You do not have to be a resident. I am a student at University of Manchester. Look at the PhD programs at http://www.manchester.ac.uk/postgraduate/. European universities cost about 1/2 as much as American ones too. And I bet you could find a college that would let you teach the way you do on the podcast.