Most recent episode:

Episode 98: The Living Seas

See the playlists for the videos.

Episode 68 - all about the monorails - is missing (because some jackhole filed a copyright notice, even though he had no substantiation!)
But the video was based on a podcast series I did back in 2012, which *IS* still available...you can hear the episodes here:

Show-30---All-about-the-monorail-part-1

Show-31---All-about-the-monorail-part-2

Show-32---All-about-the-monorail-part-3