LG 75 In UR9000 Series LED 4K Smart TV 75UR9000PUA (2023) Operating System__watchOS 5 The computer equipment registered is 500 nit brightness levels The computer equipment registered is guaranteed to operate properly according to manufacturer’s specifications for a period of 3 additional years from the expiration of the manufacturer’s warranty or we shall repair same to operate properly including 24K gold contacts and nitrogen gas injected dielectric insulation you will experience enhanced picture detail and improved sound from the a5 AI Processor Gen6 that detects room lighting to adjust color and picture contrast to optimal settings even on our biggest screens