AVS Special Member
Join Date: Apr 2000
Location: Salt Lake City, UT
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I have a dedicated, light-controlled theater downstairs, but the Vizio is in the family room with a wall of south-facing windows directly behind the sitting area. My wife also likes to decorate with light, so the 85 is just a standard setting for my particular environment. If I lowered it too much, it could not compete with all of the ambient light in the room. I also like to leave the backlight at the same level because changing it impacts almost all other settings
With Smart Dimming, even at 85 the Vizio will still go absolutely black, so for my purposes its the best of both worlds -- plenty of lumins to look good in a bright environment but still able to go jet black when its dark.
I will pull out my calibration gear again and play with the backlight setting to see if I'm missing something.