Unlike most Samsung TVs, you do not need to set the TV to game or PC mode to have low input lag. Therefore, we used Movie mode on our H5203. We calibrate our TVs in a dark room. If you have a bright one, increase the 'Backlight' setting.
As usual, Warm2 is the closest color temperature to D6500k. We disabled the processing, but if you watch highly-compressed videos (like TV shows), turn on Digital Clean View and the noise filter.
Dynamic contrast doesn't actually change the native contrast ratio of the panel. Instead, it crushes the dark grays, so turn off that feature.
This is the result of our two point gray scale calibration.