TCL QM8K 65-inch (65QM8K) / LG OLED B4 65-inch (OLED65B46LA)

TCL QM8K 65-inch (65QM8K): 65QM8K · North America · Google TV

LG OLED B4 65-inch (OLED65B46LA): 65-inch B4; UK code OLED65B46LA, sold as OLED65B4PUA in the US/Canada. Other sizes from 48 to 83 inches and the C4/B5 are separate models.

SpecificationTCL QM8K 65-inch (65QM8K)LG OLED B4 65-inch (OLED65B46LA)
Release year20252024
Model65QM8K (QM8K series, 2025)

The series comes in 65, 75, 85 and 98 inches; dimensions, weight, VESA and energy figures vary by size. This entry is the 65-inch North American model.

TCL
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Panel65-inch class 3840 × 2160; CrystGlow WHVA panel; anti-reflective ZeroBorder front

WHVA is TCL’s name for its wide-angle VA LCD panel; VA panels offer high native contrast but can lose contrast off-axis.

TCL
65-inch 4K (3840 × 2160) OLED; native 120 Hz; pixel dimming

On OLED every pixel produces its own light, so there are no separate backlight zones; pixels switch off fully in black areas.

LG
BacklightQD-Mini LED; Halo Control System; Precise Dimming

Mini LED dims thousands of small LEDs in zones for deeper blacks; halos (blooming) can still appear around bright objects. The series sheet says “up to LD3800” zones; the 65-inch page gives no zone count.

TCL
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HDR brightnessHDR 5000 nits (manufacturer class)

This is TCL’s marketing class and describes the peak reached on a small bright area. Independent measurements came in lower.

TCL
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HDR formatsDolby Vision IQ, HDR10+, HDR10, HLG

Dolby Vision IQ and HDR10+ carry scene-by-scene tone-mapping data; IQ also adjusts for room light.

TCL
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Refresh and gamingNative 144 Hz; VRR up to 144 Hz; Game Accelerator 288; Auto Game Mode, Game Bar

The native panel rate is 144 Hz; 288 is the upper limit of Game Accelerator mode. The manufacturer page does not say which HDMI inputs support 4K 144 Hz.

TCL
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ProcessorTCL AiPQ Pro TCLα8 AI Processor 4K; α8 AI Super Upscaling 4K; Dynamic Tone Mapping Pro LG
Operating systemGoogle TV TCL—
AudioAudio by Bang & Olufsen; Dolby Atmos, Dolby Digital+, DTS:X, PCM passthrough

The sheet does not give total output power or channel count.

TCL
20 W, 2.0-channel, down-firing speakers; Dolby Atmos; α8 AI Sound Pro (virtual 9.1.2 up-mix); WiSA Ready (up to 2.1 channels) LG
HDMI4 × HDMI (1 with eARC)

eARC sends audio from TV apps and connected sources to a soundbar or receiver over one cable, including lossless formats.

TCL
4 × HDMI (all 4K 120 Hz, eARC, VRR, ALLM, QMS); eARC on HDMI 3

A sound system or soundbar should go on HDMI 3, which has eARC.

LG
Other connections1 × USB 3.0, 1 × USB 2.0; Ethernet; optical (SPDIF) out; Wi-Fi 6; Bluetooth personal audio

Bluetooth version is not stated.

TCL
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TunerATSC 3.0, ATSC 1.0, NTSC, Clear QAM

These are North American broadcast standards;

TCL
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Energy360 kWh per year (65-inch); standby under 0.5 W TCLEnergy class F (UK/EU); standby under 0.5 W; 100–240 V LG
Size and weightWith stand 56.46 × 33.86 × 14.49 in, 50.93 lb; without stand 56.46 × 32.44 × 1.97 in, 46.52 lb

About 23.1 kg with stand, 21.1 kg without.

TCL
Without stand 1449 × 832 × 45.9 mm, 17.1 kg; with stand 1449 × 896 × 235 mm, 17.3 kg

The two-foot stand spans 1057 mm, so the furniture it sits on needs to be at least that wide.

LG
Wall mountVESA 300 × 300, M6 screws TCL—
In the boxBacklit voice remote (2 × AAA), quick start guide TCL—
HDR and picture modes—Dolby Vision, HDR10, HLG; FILMMAKER MODE; 10 picture modes

FILMMAKER MODE turns off processing such as motion smoothing to show content closer to the creator’s intent.

LG
Gaming features—4K 120 fps (HDMI); VRR; NVIDIA G-SYNC Compatible; AMD FreeSync; HGIG; ALLM; Game Optimiser

HGIG lets the console do HDR tone mapping instead of the TV; ALLM switches to low-latency mode automatically when a game starts.

LG
Smart platform—webOS 24; Magic Remote MR24; Apple AirPlay 2; built-in Amazon Alexa; security updates until 31/12/2028

LG promises up to five years of operating-system upgrades through the webOS Re:New programme.

LG
Connectivity—Wi-Fi 5; Bluetooth 5.1; Ethernet; 2 × USB 2.0; optical audio out; 2 × RF input; CI slot LG
Mounting—VESA 300 × 200 mm; power cable attached to the TV LG