http://wccftech.com/download-tvos-11-beta-10/

Apple has just released tvOS 11 Beta 10 for registered developers. Here’s how you can download the latest update right now.

What a wonderful surprise we have here – Apple has just released the tenth beta of tvOS 11 to registered developers. The update is available over the air, and as a separate image file directly from the Apple Developer Program website for those who might want to perform a clean restore using iTunes.