I have a LED TV that was hit with a power surge caused by lightning.

Could be your household insurance would cover the damage.

Unless the lightning strike was very local to you, on your side of the local substation, the responsibility for the cost of repair or replacement could be the power company's.

Surges from lightning strikes aren't supposed to get past the electrical substation.

Old-fashioned valve tvs and radios sometimes survived huge surges on the powerline and even minor lightning strikes to the antenna but solid state semi-conductors and micro chips aren't very tolerant to overloads of any sort. These days a tv is not longer a tv in the conventional sense but like cars and radios should be considered as just another computer that is full of CMOS chips which are extremely sensitive to overloads and static discharges. Even the screen of your tv is made up of semi-conductors.

I would be very surprised if the set isn't a write-off.