The TV is a UN65NU7100. There is no Antenna or HDMI hooked up to it and is currently being used to watch TV via the Spectrum Cable streaming app. I went through all the settings and found a setting that said "Open last app used on startup". Last app used was Spectrum, yet the TV always wants to default to some stupid TV Plus app that we do NOT want or need and goes to some stupid Cheddar TV streaming station. Don't want to have to return (4) of these same model TV's because of poor SmartHub programming and settings that don't work, but will go with another brand if necessary. Is there a software update, firmware update or other means to make this TV work the way it should? Only want Spectrum app, Netflix, Amazon prime, NOTHING else!!!