Hey,
I would find it very helpful to show how many not listened to podcasts are in every subscription. So in the main, big screen where I can open and close the folders of the different subscriptions.
e.g. I see on the left side, that I have 15 new podcasts, and in the main window I see
->Podcast 1 (5)
->Podcast 2 (8)
->Podcast 3 (2)
Otherwise I always have to klick through all my podcasts to find the new episodes.
Thanks and greetings
steffen