Rolexman, there are a couple different ways you can adjust the backlight on your TV. You can change the picture mode - Navigate to Settings, select Picture, and then select Picture Mode;
Standard: This is the Default mode that's suitable for most viewing environments.
Dynamic: Pictures are brighter and clearer in bright viewing environments.
Natural: Reduces eye strain for a comfortable viewing experience.
Movie: Suitable for watching TV or movies in a dark room. You can also further customize your Picture Settings: Home, Settings, select Picture, and then select Expert Settings. Adjusting features such as contrast and brightness will allow you to tailor the picture quality to your viewing needs. ^Gina