Mythgard had a lecture series on the Book of lost tales one, and just finished a series on Watership Down.
Soon to come: Book of lost tales part two.
My copy of both these books were left at home but if you look carefully, you will find someone posted the audiobooks on Youtube.
there are also courses on Dune and Ender's Game. I bought EG here in the used kiosk, but decided it was too depressing with the subplots about kids picking on other kids in school. Heck, Ender should have been a geek girl and faced the Heathers....