MacRumors reported that Apple has released the third tvOS 18.1 Beta to registered developers.
Apple Seeds Third tvOS 18.1 Beta to Developers
Apple today seeded the third beta of an upcoming tvOS 18.1 beta to developers for testing purposes, with the new software coming a week after Apple seeded the second tvOS 18.1 beta.
Registered developers are able to download the tvOS 18.1 update by opting in to the beta through the Settings app on the Apple TV. A registered developer account is required.
