My work had a Sceptre dumb TV as a conference room display. 2 of the 3 HDMI inputs stopped working entirely and the remaining one was limited to 4k30 or something shitty like that. Also the AC cord was hardwired and not replaceable if that's a thing that matters to you.
They're shit, why not just get a "Smart" TV and just not connect it to the Internet? Just avoid the Roku integrated ones
If you want to be extra sure it never connects to the Internet, just pop off the back panel (it's a lot easier than you think, I'm always inside TVs) and remove the WiFi daughter board (it's almost always on a daughter board)
Is there any reason to never connect a TV to the internet? I got a new TV and didn't bother connecting it for any updates, but eventually I was having some remote issues that resolved after updating the TV.