I recently bought a TCL google tv and first thing I did was install smarttube and a different launcher.
That being said the first question in the setup proces was if I wanted the “smart” functions on or just have a basic experience and only use HDMI and cable tv.
But the ads on the home screen with Google tv are really annoying. They are front and centered. I want my apps and inputs where the ad’s are.
You can try launcher manager and then the android tv version.
Or you can use the adb commands your self. You don’t need root just developer mode.