MacRumors published a story that Apple has released the second beta of tvOS 16 to registered developers.

Apple Seeds Second Beta of tvOS 16 to Developers

Apple today seeded the second beta of an upcoming tvOS 16 update to developers for testing purposes, with the beta coming two weeks after Apple introduced tvOS 16 at the Worldwide Developers Conference.

Developers can download the new tvOS 16 beta by downloading a profile onto the Apple TV using Xcode.

  Apple Seeds Second Beta of tvOS 16 to Developers