Walmart is one of the most litigated companies ever, and probably has 10+ active lawsuits against it at any given time. So if they're getting into this, they're fairly sure it will work legally now and in the future.
The battle against personal-data-collection by default on TVs is probably lost at this point. It's over. Non-smart TVs will probably become specialized, super-expensive corporate-class expenses out of reach of most people before too long.
Projectors are capable of creating a big image on a wall like a TV, and while it's not as bright, it comes with much less privacy invasion, and is also portable. That's where I'm likely spending my future TV dollars until those gets caught up in this as well.