Downgrade Apple TV to 7.5 I've recently updated my Apple TV (3rd generation), model A1469, to 7.6 (8130). But now it freezes when pausing YouTube videos. Others have the same problem. Here are some reports and discussions:

https://discussions.apple.com/thread/251826984
https://discussions.apple.com/thread/251813632
https://discussions.apple.com/thread/251805180
https://support.google.com/youtube/thread/72724736

How can I downgrade to 7.5? Can I download Apple TV software 7.5 from an official Apple server?
The instructions on the first link above point to https://ipsw.me/product/AppleTV, but this is not an official Apple site.
I've downloaded Apple TV software 7.5 from https://ipsw.me/download/AppleTV3,2/12H885 and the Finder info says it was downloaded from http://updates-http.cdn-apple.com/2020/ios/061-27784-20200313-6EA1D1F6-A6E5-40CB-8C61-B9680241903C/, which apparently is an Apple server.