My parents have a high end Samsung tv from about 5 years ago and somehow the thing has slowed down to unbearable levels. Just changing the volume and channel is difficult. A factory reset didn't fix it so I suspect the issue is software updates.
They're gonna make tvs like phones have become. I shouldn't have needed to upgrade my phone this year; the phone I'd bought in 2015 was still plenty powerful for what I used it for. But if I wanted security updates I had to upgrade to a newer android version, and as soon as I did that the phone became noticeably slower and battery life was cut in half. The android platform is fragmented across so many devices that no company is going to put in the effort to keep all of their devices updated and functioning well.