Don't forget: "Never slow down the user interface". I have a 4K Sony television that was their flagship model when it was new, but a couple of years ago they "updated" it with a new version of its OS that looks identical but is incredibly sluggish. Not technically broken, but frustrating to use. Moving around between menu items is a good 2-3 seconds, up to 10 in some cases. There is literally nothing I can do about t…
Maybe it's because I've never owned a dedicated TV and used a lot of computer monitors, but I've always treated TV as just another kind of output device, not independent system. They try to use "smart" features to promote their products, but instead what they do with them shortly after the purchase has exactly opposite effect. Also some of them (Samsung) intentionally break some (or all) smart features in some cases…
It's a good thing that I'm blessed with a small living room, and I don't need 50" monstrosities ;)