65"? You don't live in sunny England, do you? Unless you are a millionaire and live in a mansion, your normal living room is about the size of a large dog kennel would be in places like Austria or Poland. My TV is 32" and it is HUGE for my living room size.

And the point of 5" 4k screens? Or even 1080p? Bragging rights only, nothing else. The picture does not look any sharper whether you have 480 lines or 1480, unless you look at it through the microscope. The weakest link is the human, not the technology, It is the same reason the TV digital watches never caught on, even though they were available since the 1980s.