I sort of still an Novice about the digital world. Should a smart T.V. have protection?
The best way to protect a Smart TV and any other connected device that is not a computer or smartphone, is to have a router that has protection for IOT, Internet of Things, devices. One example is the Norton Core router advertised on the right side of these forum pages. You can search for other examples.
But even if you do not have one of these routers, be sure you are using the current features of your current router. Be sure you have changed the router's settings password to a strong password. Use WPA-2 security for your Wifi connections, again with a strong passphrase.
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