Actual Play Podcasts with GM prep episodes?

There are lots of resources for GMs to learm and improve their skills, but rarely have I been able to simply watch a GM prepare for the next session. Actual play podcasts have been a great experience for both just entertainment but also picking up tips and inspiration. However, I often find myself feeling like my own GM prep could be improved, making it more efficient or creative or thorough.

I have watched several of the Swan Song GM turns. Stars without number as a game lends itself to GM prep sessions, but certainly other games like D&D are worthy of such (and podcast worthy).