I’m a carpenter by trade and a tinkerer on the side. I have an older flat-screen TV waiting for me to get some time as the back light has burned out. I will completely disassemble it, test the leds, find the busted one(s) and bridge the connections so it can be backlit, just a bit dimmer.
I know how to because I’ve already done this once. I’ve had that particular LCD for over a decade at this point and I’m not going to just toss it when the issue is fairly simple to bypass.