My cheapo dumb tv died a couple of years back, was a great bit of kit for $400au that gave me 10 years. I've got a "smart" tv at the moment which isn't connected to the internet, and just serves as the display for my Shield TV.
I'd probably consider an LG commercial / signage display as my next device, some old work connections can get me one as a special purchase through their distribution channels it's just waiting out the current panel dying.