This will work for now, but device manufacturers are working towards building out mesh networks. You may not have connected your TV to the internet, but your neighbor did, and your TV can piggy back on your neighbors connection.
I can see that coming - examples are Amazon's sidewalk project and Apple airtags.
At present, connecting your device is an opt-in since you have to give it wifi creds. In the future, devices will be connected by default and you'll have to opt out if you want to disconnect. Even if you're one of the few people who opt out, devices are going to have fine print that they can always receive "critical" updates via mesh.
Eventually many devices simply assume they are always connected, it's baked into their operation. They'll delegate key features to the cloud and opt-out won't even make sense.
Tv warranties are only a year so that’s not much to worry about. I bought a top of the line Samsung many years ago. The warranty lasted only a year and some capacitors burned out it took lots of phone calls to get them to repair as it’s a design defect.
