The Tank Museum (formerly Bovington Tank Museum) is also doing a long-running series of "tank chats" on their exhibits. They don't only give some very interesting details (if you're into that sort of thing) but also give some deep historical context behind the vehicles.

https://www.youtube.com/playlist?list=PLBAEOsdxIbLPFEomzphaZ...

https://www.youtube.com/user/TheTankMuseum