MacRumors published a story that Apple has released the second beta of tvOS 17 to registered developers.
Apple Seeds Second Beta of tvOS 17 to Developers
Apple today seeded the second beta of an upcoming tvOS 17 beta to developers for testing purposes, with the update coming two weeks after Apple introduced the first beta.
Apple Seeds Second Beta of tvOS 17 to Developers
Registered developers are able to download the tvOS 17 update by opting in to the beta through the Settings app on the Apple TV. A registered developer account is required.
