jkcymbal Said:
Apple or YouTube?:
Q1: "not sure if this is Apple or YouTune doing but I’m not happy.”
A1: It is Apple doing it — they are trying to get everyone to upgrade to newer devices. It’s the same ordeal as not being able to install an update, or install oder after upgrading.
Downgrading tvOS:
Q2: “can I downgrade my tv os just to keep watching YouTube as before?“
A2: I don’t know about the downgrade (and am I am not certain about downgrading a tvOS being an option to perform). But, get a new, former device (off of eBay or something), and the Apple TV would have the out-of-the-box tvOS.