https://wccftech.com/download-tvos-15-1-1-for-apple-tv-4k-and-hd-now-available/

Apple has just released tvOS 15.1.1 update for Apple TV HD and Apple TV 4K users. It's a bug fix release and is available over the air.

A week back, Apple released tvOS 15.1 for Apple TV users around the globe. And now, Apple just walked a mile further and has released tvOS 15.1.1, which is nothing more than a bug fix update.