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This Windows tool makes it super easy to debloat and cut down ads on your Android TV
(www.androidauthority.com)
This is a most excellent place for technology news and articles.
Usually you have to either disable the default launcher with adb or you need to remap the home button to open a dofferent launcher.
I always go the adb route for everything. I also have UART access on my TV, so I can disable the setup wizard and avoid logging into anything or accepting any EULAs.