Software needed:
Steps:
- Go to settings — my firetv — developer options and ensure both options are enabled

2. Install the 2 APK’s from the top of this page
3. Launch Remote ADB shell

You will see this prompt if this is the first time you are making an ADB connection:

Enter in the following command
settings put secure screensaver_components com.codingbuffalo.aerialdream/com.codingbuffalo.aerialdream.AerialDream
Press enter

If you wait 5 mins, the new aerial dream screen saver will start


How to change screensaver time out
Enter in the following ADB command (the xxxx is the timeout you want in milliseconds before the screensaver starts)
settings put system screen_off_timeout xxxxxx

How to change the device sleep timeout (default is 20mins)
Enter in the following ADB command
settings put secure sleep_timeout xxxxxxx

How to restore the default screensaver
Enter in the following ADB command
settings put secure screensaver_components com.amazon.bueller.photos/.daydream.ScreenSaverService
Watch the steps here: