Android TV will simply just display the launcher on a reboot, a small distraction for users expecting to see TV and annoying for individuals using Android TV as a dumb kiosk displaying a single video or stream.
This app allows the user to select a specific app to open when the device boots. It's just that simple. Any leanback-enabled app can be opened. Alternatively, the default TV app can be opened, returning you to the channel you just saw.
Want to make your Android TV act more like a dumb TV? Want to launch Sling TV immediately. You should download this small utility app.