Thanks, Mr. DeRego. Looks like I won't be doing the show then, as I had no plans to charge for it, and I'm not exactly flush with extra funds to line the coffers of the ASCAP. I'll probably just record the episode I've already got in the works, for practice and to build up my Audacity chops, and keep it as a "demo".
But I haven't even looked at the links you mentioned yet ... who knows?