This is a minor request that isn't really important, but would be neat if easily implemented.
Would it be possible to adapt the search function when on the podcast page to show podcasts with the keyword? Especially useful if it searches undownloaded shows (if they are shown). Occasionally I look for an old show I've already heard, but I don't know when it was, and I only know a guest's name, or an episode title. This would make finding them wonderfully easy.