this is screaming for an open source tool and/or firmware to "dumb down" smart TVs. On Google TV it could apply app & service configuration settings to turn of

this is screaming for an open source tool and/or firmware to "dumb down" smart TVs. On Google TV it could apply app & service configuration settings to turn off networking, recommendations, home screen content and just enable the input-switcher . Since it is Android based, there are lots of tools using ADB, debug tools, device policy etc that could work.