: Open the TV's native web browser and type hisense://debug into the address bar.
Check the total "Operating Time" or "Backlight On" hours to see how much life is left in the panel. hisensedebug
On many older Hisense Smart TVs (specifically those running the VIDAA operating system), entering a special URL into the stock web browser opens a hidden installation menu. : Open the TV's native web browser and
Possible interpretations of “hisensedebug”: hisensedebug
Navigating the Hisense Debug Menu: A Deep Dive into "hisensedebug"