This is where a repair depot wins. They can try boards before they call it a bad panel.
I have the following model, 43UF680V set. Less than 2 years old.
It's recently started to develop lines across the screen. Some are permanent, some come and go every 4 seconds.
I've replaced a TCON board and it hasn't helped. I find it hard to believe it's the whole display so hopefully there is something else I can try.
Any help is appreciated.

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