Facinating and worthwhile. Each episode is short and sweet. (Although they sometimes fail to focus on the point listed on the title.) My main gripe is with Brian Jones' appearance. Over the years he's let his hair grow long and his beard get scruffy. Sure, the kids might think he's okay -- but is anyone asking them? (Indeed, Brian is very personable.) It is a distraction. I'll get personal here. Brian, please recognize that these podcasts are going out to a larger audience, not just the school house community. You needs to get a haircut and trim the beard. The presentation of the show will improve greatly when you do so. And then your message about science will be accepted. Until then, though, you're stuck at a 3 star rating witth me. (I'm about the same age as you and I hope you will take this message to heart.)