Im wondering what kind of tv to look for?
IMO 4k is useless because the network where I live is bad and 1080p is good enough. I don’t think smart tv functionality is a thing to look for, more like a « what not to look for » criteria.
What other criterions should be taken?
Look for commercial grade TVs, like those displays in restaurants and whatnot. They’re often a bit more expensive and frequently lower resolution and slower refresh, but they last a lot longer and picture quality is usually fine. You won’t find them at Amazon or bix box stores (if you do, make sure they’re actually commercial grade, not just advertised that way), so you’ll need to figure out where local businesses get them.
So if you’re interested in just a basic, 1080p screen and value longevity over consumer features, look at what businesses buy.
One key term to search for is “digital signage”. Since they’re built to stay on 24/7 for years, you’ll probably need to buy another one, which offsets the higher price to an extent. If you can make do with a smaller panel, a large monitor with HDMI input is another option.
You can also sometimes find a shop that’s selling off someone’s warehouse remainder of older dumb panel consumer TVs, although that’s getting much rarer as the number of new-in-box units decreases.