The hardware doesn't need to go to waste. At that point, cut all its connections from the Internet and use it as a dumb panel. Many people will say you should

The hardware doesn't need to go to waste. At that point, cut all its connections from the Internet and use it as a dumb panel. Many people will say you should have never connected it in the first place anyway. You can alway use a streamer box (custom Linux one, Apple TV, Fire Stick, etc) to give it "smarts".