Comment by brabel
I had a 75-inch TV I inherited, it was on the higher end and the TV UI was supper snappy. Then, I broke it accidentally and got only 1/4 of the money from insurance. Because I barely watch TV, I thought I would just buy a TV of the same size, but on the lower end... both TVs were Samsung anyway. What a huge difference. The image quality is a little worse, barely noticeable after you get used to it. But the UI is agonizingly slow. Every time I turn the TV on it starts showing some channel fairly quickly, but then after several seconds the image gets black because it's loading the stupid UI... and I can't find a way for it to NOT do that! The higher end TV, needless to say, didn't do that. So now, I know what you're paying for when you get a TV for $4,000 instead of $1,000: slightly better image , but a proper computer to run the stupidly heavy UI (probably made using some heavy JS framework, I suppose).
Plug a new chromecast into one of the HDMI ports and use that and only that and weld the setting shut so that you never have to deal with the TV’s default UI ever again.