In my hosehold TVs are only used as large monitors connected to computers by HDMI/DisplayPort . Any other connectivity is disabled. We've stopped using the actual television whether over the air or IP based years ago.
Of course computers can be broken into as well but at least those are the beasts I know how to maintain.
Same set up here. You turn on the TV and are greeted by the Ubuntu desktop. From there you can launch Firefox and sign into Jellyfin or whatever streaming service you prefer.
Of course computers can be broken into as well but at least those are the beasts I know how to maintain.