VIZIO P55-F1 TV with backlight issues

VIZIO P55-F1 TV with backlight issues

Several months back my TV was hit with a surge after the only ground to my house was disconnected (thanks, landlord). Even with surge protection, some electronics got hit but thankfully most of my major devices were fine. My 55" 4K TV seemed ok at the time but I have since experienced issues with it sporadically turning off or backlight zones going dark.

ANSWERS: