Which TV did you buy? I bought a KS8000 in 2016 and it never has any issues and I use an Apple TV with it. I’m surprised you are having so many issues with a top of the line TV.
It was a Q90T bought in October of 2020. I also remembered another issue, after I replaced the TV with an LG, I started using it with a gaming laptop so my friend and I could play games on PC together. But we had nights were we spent an whole hour trying to get the TV to recognize the Laptop’s output. Sometimes it’d work, other nights it would refuse, and it got worse over time. I hate that TV with a fiery passion, it cost so much money and it was not worth it, not even close. The prior TV I had was a Sony top of the the line in 2007, and it was immaculate, lasted until 2020 when I replaced it.
