Calibration report using these settings: [see below]
TV software/firmware version tested: 6.2, build 4126
Below you'll find the settings I found best for viewing the Sharp LC-43LB371U in a dim room via the HDMI input. Your settings may vary depending on source, room conditions, and personal preference. Check out the Picture settings and calibration FAQ for more information.
Calibration notes: The Roku TV's controls are so sparse that a true calibration isn't possible, but that's not a terrible thing since its uncalibrated image is quite accurate. Its best setting for a home theater environment is Movie Mode with TV Brightness set at "Dark," which I chose over "Darker" since it came closer to my target light level of 40 fL.
Gamma was fine if closer to 2.2 overall than my 2.4 target. There's no gamma control to change it, and none of the other settings improved on this number. I also tried the Normal color temperature but it was far less accurate than Warm. The latter was skewed toward red, but not terrible by any means.
Colors are quite accurate with five out of the six primaries and secondaries clocking in below my target Delta Error of 3. As a result I didn't touch the color or tint controls either.
-- Options menu
TV brightness: Dark
Picture mode: Movie
[other settings not relevant]
-- Advanced picture settings menu
Picture Mode: Movie
Dynamic Contrast: Off
Color temperature: Warm
Picture size: Direct
Game mode: Off
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