https://wccftech.com/apple-releases-public-beta-2-of-tvos-13-and-macos-catalina/

Today, Apple has seen fit to release the second public beta 2 of macOS Catalina and tvOS 13. If you’re interested in giving it a swing yourself, you can download it right now on your Mac and supported Apple TV device. If you’re unfamiliar, we will tell you how you can install public beta 2 on your devices. So let’s dive in to see some more details on it.

You can download the public beta 2 of tvOS 13  on your Apple TV by navigating to the Settings app and then head over to the Software Update section under “System”. Once you do that, toggle on “Get Public Beta Updates”. The beta software will be downloaded on your Apple TV automatically.