I have bad news for you. Even if the TV is not connected to your WiFi, it could still get into the network over other devices connected via HDMI with HEC [0].
Although it could be a general concern, it unlikely to affect me.
Since all the HDMI connections are via a (slightly older, non-connected) AV receiver, its almost impossible for this to affect my setup. But it's indeed a sleazy move by those setting the HDMI standards.
An Nvidia shield handles all the streaming, kodi handles local files etc, all the media that I could possibly need.
4k is handled by default out of the box.
Surround sound is handled by an AV receiver. (Atmos surround is available if I wish to further upgrade the 7.1 speakers).
It can be done. Granted, itβs not cheap and installing all these devices can be painful, but still.