Before touching the advanced sliders, you must disable the "energy-saving" features that actively dim your screen and crush details.
Cinema is the gold standard for accuracy. If you find it too dark during the day, Cinema Home boosts the brightness without destroying the image. 4. Gaming Calibration lg-cx-best-picture-settings
For external devices (4K players, consoles), go to Settings > All Settings > General > Devices > HDMI Settings and toggle this On for each active port. 2. Best SDR Settings (Movies & Shows) Before touching the advanced sliders, you must disable
This is your "volume knob" for brightness. For a dark room, 25–35 is standard; for bright rooms, Contrast: 85–90. Before touching the advanced sliders