How to change how often Apple TV downloads screen savers
Aerial screen savers on your Apple TV - Apple Support
Get the Apple TV Space Screen Savers on Mac | OSXDaily
Picture Post: I really do love the Apple TV's screen saver. Space is just stunning. | The France Hopper Network
How to get AppleTV screensavers on macOS
Dr. Mark P. Barry on Twitter: "Apple's new tvOS 12 now includes a screensaver of flying southeast at night over Siberia, Mongolia and the Korean Peninsula seen from the International Space Station.
Get the Apple TV Space Screen Savers on Mac | OSXDaily