In the context of podcasts where there's a regular stream of episodes, it's perfectly reasonable to say that you have DRM free access to any episode that occurr

In the context of podcasts where there's a regular stream of episodes, it's perfectly reasonable to say that you have DRM free access to any episode that occurred prior to your subscription ending. It's how every single other podcast subscription service works. (full disclaimer: I run engineering for a competitive podcast subscription service, Supercast)