The app currently allows for the automatic deletion of an episode based on when it was downloaded. However, the lowest value that can be set is 1 day. instead of having a fixed set of values like now (1d, 3d, 1w, 2w, etc.) can you change the UI so that the user can enter whatever number they want and select the time unit (hour, day, week, month)? That way the user has total flexibility in how long they want to keep episodes before they are automatically removed. This would be very handy for news podcasts which go stale after a few hours.