Buy a smart tv but dont connect it to the Internet no Wifi, no lan cable. Instead connect and use offline video sources such as Blueray, VLC.
Also what many people have missed is that the promise of data collection revenue is what has made TVs unbelievably cheap. It’s crazy that you can get a 70” for less than $500.
If not buy a giant computer monitor. It’ll be easier to find and will be close in price to a dumb TV