TCL QM8 / QM851 HDR settings

Display at a glance

Type

Television

Panel

Mini-LED VA

Peak brightness

~2400 nits

Full-field brightness

~720 nits

Local dimming

1080 zones

HDR formats

HDR10, HDR10+, Dolby Vision, HLG

• Aggressive local dimming can crush some shadow detail.

TCL picture-menu (OSD) settings

• Colour TemperatureWarm

  Warmest preset is closest to reference.

• Peak BrightnessHigh

  Maximises HDR highlights.

• Local Contrast / Micro DimmingHigh

  Highest setting gives the deepest blacks and most HDR contrast on this panel.

• HDR Tone MappingHGiG if available, else Standard

  HGiG respects the console/in-game calibration.

• Dynamic ContrastOff

  Off avoids the TV second-guessing the HDR mastering.

Menu names vary by model and year — match the closest equivalent on your set.

TCL QM8 / QM851: outstanding HDR — calibrate it and enjoy.

• Maximum / Peak brightness2400 nits
• Paper white / UI brightness170 nits
• Minimum / Black levelLowest the symbol allows

1. Turn on HDR in Windows
2. Run the Windows HDR Calibration app
3. Set SDR content brightness
4. Match each game’s own HDR slider

TCL QM8 / QM851: outstanding HDR — calibrate it and enjoy.

• Maximum / Peak brightness2400 nits
• Paper white / UI brightness170 nits
• Minimum / Black levelLowest the symbol allows

1. Enable HDR on the PS5
2. Set RGB range to match your TV
3. Run "Adjust HDR" (3 screens)
4. Match each game’s own HDR slider

TCL QM8 / QM851: outstanding HDR — calibrate it and enjoy.

• Maximum / Peak brightness2400 nits
• Paper white / UI brightness170 nits
• Minimum / Black levelLowest the symbol allows

1. Confirm HDR is active
2. Run "Calibrate HDR for games"
3. Decide on Auto HDR
4. Match each game’s own HDR slider

TCL QM8 / QM851: reference-grade for HDR movies — set it up and enjoy.

1. Use the TV’s built-in streaming apps
2. Set streaming quality to the HDR tier
3. Pick the movie picture mode (per app if needed)
4. Turn off the ambient light sensor / eco dimming

Watching via Apple TV, Android/Google TV, PC or a console? Open the calibrator in Movies mode for the exact per-source steps (Match Content, Dolby Vision, 24Hz and more).