These are the settings we used to calibrate the Samsung 55 inch UN55MU9000 TV and we expect them to be valid for the 65 inch version (UN65MU9000) and 75 inch version (UN75MU9000). These are good for any content, from watching movies to TV shows and gaming. For Gaming, some adjustments need to be done mostly to have the best input lag, and they are listed below.
The first thing we did was to turn off all of the 'Eco Solution' settings since we didn't want the backlight level to change during our calibration. This is recommended if you don't want the luminance of the TV to change automatically each time the room lighting changes.
We then set the 'Picture Size' to '16:9 Standard' with the 'Fit to Screen' option set to 'On'. The 'Fit to Screen' option permits you to match the input signal without having to manually adjust the display scaling from the source output setting, which is often needed when connecting a PC to a TV. It can also be useful to fully fill the screen when watching some lower resolution content.
For movies and TV shows and other video content, we selected the 'Movie' 'Picture Mode', since it is the picture mode that gave us the closest result to our calibration goal and it should bring the image quality closest to what the content creator intended it be.
In our totally black room and to reach a luminosity level closest to our calibration target of 100 cd/m², we used a 'Backlight' setting of 4. Note that you should change 'Backlight' to match your room lighting and it won't affect the picture quality. We left the 'Brightness' to 0 and the 'Contrast' to 95, their default values. We left the 'Sharpness' to 0 to avoid any oversharpening. We left the 'Tint (G/R) to its default value of 'G50 and R50'.
We turned off the 'Digital Clean View', but if you are watching some older low-resolution content, you may want to set it on to make the content smoother and with fewer compression artifacts. For our calibration, we left the 'Auto Motion Plus Settings' Off, but if you like the Soap Opera Effect, 'Auto Motion Plus Settings' is the setting that is related to the motion interpolation (more on that later). We set the 'Local Dimming' to 'Low' for the calibration (usually, we turn it off for the calibration, but it is not possible for the MU9000). The local dimming feature is not that effective on the MU9000 (like most of Samsung edge-lit TV), so we recommend that you try all of the different settings and choose the one that you feel is the best for your use. 'Contrast Enhancer' was left turned off since we don't want to add any extra image processing to keep the content as faithful to the original intent. 'HDR+' mode was also left off, since this feature will try to extrapolate HDR out of SDR content, creating a fake HDR and once again, we want to let the content be as true to the source.
The 'Auto Motion Plus Settings' is the setting that controls the motion interpolation, commonly name Soap Opera Effect. It also controls the way the TV deals with judder. If it is turned off, the TV won't remove judder from any sources (Blu-ray players, native app or cable boxes). To have a judder-free 24p movie you need to set the 'Auto Motion Plus' setting to 'Custom', set the 'Blur Reduction' to 0, set 'Judder Reduction' to 0 and leave the 'LED Clear Motion' unticked. This won't add the soap opera effect and should remove judder from 24p movies from any sources (24p, 60p and 60i). 'LED Clear Motion' is used to clear up motion and you can read more about it here.
If you like the soap opera effect (motion interpolation), always with 'Auto Motion Plus' set to 'Custom', you can increase the 'De-judder' and 'De-blur' sliders until you have enough soap opera effect to your liking. Note here that the 'De-judder' slider affects 30 fps or lower content, and the 'De-blur' slider affects 60fps content.
Going back to the rest of the 'Expert Settings', we selected the 'Warm2' 'Color Tone' since it was the closest to our calibration goal, but you can change it to a cooler 'Color Tone' if you find the color too yellow or red. The gamma setting adjustment was left to 0 since it was the closest to our calibration goal. Note that here, the gamma type is set automatically depending on the type of content you are watching. You can only adjust the gamma curve with the slider (plus or minus) if you find there is black crush or if dark scenes are not deep enough. The 'Color Space Settings' was set to 'Custom' to allow us to adjust the color space during our calibration session (SDR Rec.709), but if you don't intend to do a calibration, it is preferable to leave it to 'Auto'. When set to auto, the color space will change to match the type of content you are watching automatically (SDR or HDR). Note that once again for the MU9000, we don't really recommend to calibrate this TV for normal use since it was pretty accurate out of the box.
For watching HDR content via an HDMI connection, it is important to set the 'HDMI UHD Color' on for each HDMI input that will receive the HDR content. This will permit the HDMI ports to transmit all the bandwidth needed for HDR. If the 'HDMI UHD Color' is not turned on, some devices will not detect the M9000 as being compatible with HDR. For HDR content, it is also preferable to set the 'Backlight' to maximum, set 'Local Dimming' to 'High' and set the 'Color Space Settings' to 'Auto'.
To have the best input lag while playing games via a video game console or PC, you can keep the general settings mentioned above and turn on 'Game Mode' from the 'External Device Manager'. If you are playing on a PC, then set the input icon to 'PC' from the home page, if you want to enable the chroma subsampling.
For HDR gaming apply the same HDMI settings mentioned in the HDR settings and game settings above. Note that when in game mode, the TV won't change the backlight setting and the local dimming setting automatically, so it is preferable to set the backlight to max and set the local dimming to high.
The following are the results of the white balance and colorspace calibration on our unit. They are provided for reference, and should not be copied as the calibration values vary per individual unit even for the same model and same size as the TV we reviewed due to manufacturing tolerances. If you want to try them you will need to enter all values shown, as all of them are active at the same time. If you end up with worse picture quality, simply reset them to the default values.