I also massively decreased the "chin" and bloat on the show/episode pages. I played with shifting the art and description into a sidebar, but it didn't look or scan well, on desktop or mobile.
I've effectively "hidden" the channel feeds in a way that those who want that experience can find them, but that they don't clutter things unnecessarily. Statistically, a significant enough number of feed subscriptions have been made to both "channels" (over 20% of subscribers to either main show feed).
I was thinking about knocking Screen Time and Artist Edition off the front page too, but it looks a bit lopsided with four bricks. Then again, I really like shaving down for simplicity's sake.