Top cast is like a history lesson, great interviews with legendary pinball people. No longer produced and not on itunes, do an interview search for them.
The Pinball Podcast is great, informal but at the same time has its topics it does every week. A fun easy listen that I always look forward to and usually listen the day its available.
Spooky Pinball is awesome, but some don't like how goofy or off topic it can get. Lots of innuendo as well as heavy family involvement from Charlie and crew, try the episode the just put out at Christmas for your first one.
Gameroom Junkies do often talk about Vids, but even though I am not a collector its still great to hear. They have excellent chemistry and really know how to conduct an interview. Every episode is stellar.