Well you could not connect it to the internet…

Not anymore with sidewalk and other similar corporate networks bypassing any requirement for the consumer to connect the TV to wifi

aboutamazon.com/…/everything-you-need-to-know-abo…

How much of my internet bandwidth does Amazon Sidewalk require?

Very little. Sidewalk’s connectivity is distinct from your home Wi-Fi. If you choose, however, to enable Sidewalk on your eligible Bridge devices, those devices would use a small amount of internet bandwidth.

This sounds like it still needs your internet to work unless I’m missing something.

The connection isn’t for you. It’s so the TV can fingerprint the content you watch, and then send that utilization data back to the company.

You don’t need much bandwidth to do this.

So with no wifi connection, and a blueray player, if you play Star Wars, they can fingerprint a few frames, send them back to Roku or whoever over sidewalk via your neighbors ring doorbell, and know you played star wars… Even with your completely offline setup