I have a Vizio TV I bought in the mid-teens that only lets you change the source and turn the volume/channel up and down with the remote. Everything else...the display/audio settings, naming the inputs, setting the channel names...requires the Vizio app on your phone. Literally no other way to access them. If I'd have known at the time I would have returned it immediately, but unfortunately I didn't discover this for a couple weeks as it was on sale and I was leaving for vacation, so I bought it, dropped it at home, and didn't actually touch it until it was past the point where I'd have been charged restocking fees so I kept it.

I guess my point is....I wouldn't necessarily bank on that. They can easily just make the TV not fucking work without the account, just like some of the other brands I've interacted with that will not even let you bypass the initial screen when you power it on for the first time without entering an email address or else it gets locked in it's demo mode.

Even if 50% of them get returned they'll likely still be making money.