David and Wendee Levy produce a show called Let's Talk Stars. David is a well known amateur astronomer with a long list of books to his credit. They have an easy laid back style that makes you want to grab a cup a coffee and sit across the campfire for a spell. Their programs are available to download. They champion family observing, astronomy camps, and interview people from all branches of the astronomical tree. David also writes for Sky & Telescope. Give them a listen. I think you will enjoy the programs.
Clear Sky - Rich