This beta likely contains bug fixes and improvements to tvOS 16.1 which was just released yesterday.
TV App - Known Issues
● Play tracking (Up Next, and Top Shelf Update) won’t work for all platforms. (101258095)
Developers can download the new build from the link below. Please download the iClarified app or follow iClarified on Twitter, Facebook, YouTube, and RSS to be notified if we spot any changes.