Not even that will save you.

LG was just caught very recently when they installed malware on people's PCs via Windows update masquerading as some kind of "monitor firmware update".

https://videocardz.com/newz/lg-monitors-silently-install-software-through-windows-update-without-user-consent

I bought a Westinghouse "non-smart" TV for my workshop, which is out of range for our wi-fi. I have an antennae for over-the-air TV and no internet back there, so I wanted something that just comes on and plays without having to go through menus and shit. 32" for $149 through Mal-Wart™. I have a TCL with Google TV in my den, but it has a bug where it won't stay connected to the wi-fi, and I'm cool with that...

Yes, but they’ll be prohibitively expensive for most people. Companies need dumb TVs for things like lobby displays, digital menu boards, digital directories, meeting room displays, etc… Imagine corporate secrets leaking because a smart TV was sending screenshots back to LG on a boardroom meeting’s PowerPoint presentation. Or a hospital patient’s personal info showing up in data sales, because a hospital’s digital directory was listening in on conversations at the nurse’s station.

Commercial Displays are truly dumb TVs, but they’re often thousands of dollars more expensive than a smart TV. Because their price isn’t being subsidized by the mind-boggling amounts of data snooping. They’re also designed with durability in mind, because a typical TV isn’t meant to run 24/7. But a 24/7 restaurant can’t just turn their menus off and continue to function. So their panel hour lifetime is typically rated much higher than a consumer-level panel. They also often won’t include a lot of the most cutting-edge options, because they’re designed for a good enough image over long periods of time.

Was just looking for this, apparently Sceptre makes some. I had never heard of them.

Best Buy also has a filter for 'non-smart'. Tho the results don't seem very good, at least a couple had reviews calling out that they had smart features.

But yeah, by default I think the main option is to not connect a smart TV to the Internet. But then you have to do research to make sure it allows that, and doesn't try to rogue connect to open networks.

Tube tv + tv box with av output

I bought a TV recently and it’s difficult to find a major brand without a ton of smart features. I bought a Samsung and just don’t let it get on the internet. It’s…ok

You can buy a Roku TV and just never set up its internet connection. Other brands are likely similar.

If you have already connected it to the internet, you can just choose the “reset” option in settings to start over and then avoid entering network information.