[sfRattan]

If you're planning on using the TV as a dumb display for another device, and are determined enough to physically remove a cellular modem, then the TV's own WiFi is not a useful thing either, even if integrated into the same chip.

[hunter2_]

If you want the TV to be on your network (for casting or streaming or whatever) and you also want to filter that traffic (allowing connections only to the services you want to use) then you need it to be on your own network (wifi, if there's no ethernet port) and not on someone else's network (cellular).

[bluGill]

The CPU, wifi, and modem are all in one in this future (think ESP32). That is the direction this is likely to move. You can't remove one without the rest. I suppose you could put your own CPU in and write software, but otherwise you are stuck.

[quesera]

I have not purchased a TV or car with these misfeatures, but I expect I will have to at some point in the future.

The most vulnerable part might be the antenna? Required by laws of physics to be a certain size and shape, and is not easily integrated into another more essential component?

If found, it can be removed entirely, or replaced with a dummy load to satisfy any presence detection circuits. But radiation can be minimized or eliminated.

Now obviously a device can choose not to function (or to be especially annoying in its UI) if it doesn't find a network. But people take cars (and TVs) to places with no WiFi or mobile coverage, and I don't know how the device manufacturers deal with that.

[drnick1]

I don't need WiFi, all I need is the HDMI port.