The link has a ton of information.
Now, It is obvious that putting it completely offline is more safe. But, some people often use the TV’s to watch Netflix or something like that. Then they might forget that it is still connected to the internet when they are done watching.
Under Privacy Settings, there are options for Device Usage Data, Collect App and Over-the-Air Usage, and Interest-Based Ads. All are enabled by default, but you can disable them.



This advice feels like “Have you moved to the surface of the sun? Make sure to drink lots of water.” It’s not wrong, but also not particularly helpful. The only solution is to stop buying these things. Ideally take them back and get a refund if it isn’t too late.
Most will keep using smart TV’s on the internet. It is helpful in reducing the data sent back.