Keep the tv dumb. Don’t connect it to the internet.

I like to check rtings.com for model specs and comparisons. Like, some panel types work well in a bright room, some work better than others when you are watching with a bright light source behind you. The warehouse clubs (Costco, BJ’s, Sam’s) tend to have good deals on midrange tvs.

Then pair it with a streaming stick of your choice. A generic Android TV stick/box would work.