The December 6 episode featured interview guest David Byrne. David is one odd fellow, but he's extremely well-educated, and the episode expanded my mind in several ways. Could have been I was high when I watched it; or maybe it was just a great episode. Both are actually true.
If you have the NatGeo channel on your cable or satellite system (does Hulu work?), then you can "unlock" and view the episode on your computer. Or you could just watch it on your TV.
I highly recommend this series. Neil is a fascinating guy and it's well worth your time, unless you are a religious fundamentalist, and then the series will probably just piss you off. On second thought, if you are a religious fundamentalist, you NEED to watch this series.