Yep it's easy to access, for LG OLED go to All Settings - General - About this TV - TV Information. Dun mo makikita Total Power On Time. ..also serial# and Model#....what I also quickly check if it matches the serial# marked in the Box ...Also sa first time na Turn ON ang Unit dapat meron sya initialization and will display a Total full screen White, Green, Blue screen to checks for deadpixels...kapag wala nun tyak na Open na yun Unit.