Newly purchased Vizio TVs now require Walmart accounts to use smart features

Walmart wants to connect what people stream "directly with retail interaction."

Ars Technica
This is why you never connected a "smart TV" to the internet.
If you disagree, do it and then run a Wireshark analysis.
The best option I have found, after trying them all is Apple TV.
Least about of telemetry, best picture quality, and very secure.