If you're looking for a screensaver app for Android TV that displays stunning and well-known videos of our planet, then Planet Earth by Denis Nelubin might be just what you need. This free app doesn't have a user interface, but it plays the videos in a random order when you start it. To switch to the next video, all you need to do is press the "OK" button on your remote.

It's important to note that the videos are streamed online, so you'll need to take care of your network connection plan. However, if you're looking for a simple and beautiful way to showcase the beauty of our planet on your Android TV, Planet Earth is definitely worth checking out.