Now you can check all the video shots available in the Aerial Screen Saver application, by default, only a few screen savers are saved, but you can simply download the other videos from the collection. Once selected, you can click on Screen Saver options button, this option will allow you to customize the Screen Savers.
This option will open Desktop & Screen Saver settings page, you can simply select Aerial from Screen Saver section, it will change your Screen Saver to the Aerial Screen Saver (aka Apple TV Screen Saver). Now click on Open settings option from the drop-down menu. Once done, Click the Aerial Companion app icon listed in the top menu bar. You can now setup Aerial Screen Saver, simply tap on next button a couple of times, you can enable beta releases option, if you want to receive beta updates of the application. Since you’re using the app for the first time on your Mac, you need to give a permission to the app, by simply tapping the open button. Now head over to the launchpad or applications folder and open the Aerial Companion app on your Mac.