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A large 77 inch black OLED television on a stand, thin flat panel with minimal bezels

LG Electronics

LG Electronics OLED77B6GUA 77" OLED TV 4K 120Hz a8 AI Processor 4K Gen3 Dolby Vision Dolby Atmos WebOS 26 2026

SKU CH-876B-GX03Q

A 77-inch OLED screen delivers perfect blacks and vivid colour across 8.3 million self-lit pixels, driven by the a8 AI Processor 4K Gen3 with Dolby Vision and Dolby Atmos.

  • Screen size77 in (196 cm)
  • Refresh frequency120 Hz
  • Year2026
  • TV technologyOLED TV
  • Optimal resolution4K
  • Highest resolution3840 × 2160
  • Perfect Black from 8.3 million self-lit pixels
  • AI picture tuning with a8 Processor 4K Gen3
  • Dolby Vision and Dolby Atmos for cinema feel
  • 120 Hz native refresh and 0.1 ms response for gaming
  • WebOS 26 smart platform with Wi-Fi 5 and Bluetooth 5.3

77-inch OLED Smart TV for Cinema and Gaming

The LG OLED77B6GUA is a 2026 model built for viewers who want cinematic colour and responsive gameplay on a single large panel. Its self-lit pixels and a8 AI Processor 4K Gen3 adjust picture and sound to the content being watched. The set runs WebOS 26 and connects via Wi-Fi 5, Bluetooth 5.3 and four HDMI inputs.

Sustained Brightness and Motion Handling

Because each of the 8.3 million pixels emits its own light, the display maintains perfect black levels without the haloing or backlight bleed seen in LED sets during long viewing sessions. The 120 Hz native refresh rate and sub-0.1 ms response time keep motion clear during extended gaming, while VRR at 120 Hz, G-Sync Compatible and FreeSync Compatible support prevent tearing over hours of play.

77-inch Screen Size as the Deciding Factor

The 77-inch diagonal determines whether the TV fits the intended room and viewing distance. Buyers who need a smaller footprint or a different aspect ratio should look elsewhere, as this panel is fixed at 16:9 and the physical dimensions are set by the 77-inch class.

How it compares

Measured against everything we stock in LED, Quantum Dot & OLED TVs, at today’s prices. Recalculated every night.

Price $2,097.99
Pricier than about 70% of the 836 comparable items (median $1,384.99).
Screen size 77 in (196 cm)
Higher than about 80% of the 693 comparable items (median 65 in).
Refresh frequency 120 Hz
Typical for this category: the median of 463 items is 120 Hz.

Specifications

Product
Brand nameLG
Model nameOLED77B6GUA
Year2026
Product colorBlack
Display
Screen size77 in (196 cm)
Refresh frequency120 Hz
TV technologyOLED TV
Curved screenNo
Optimal resolution4K
Highest resolution3840 × 2160
Screen ratio16:9
OLED panelYes
Picture processora8 AI Processor 4K Gen3
Audio & video
Speaker setup2
Connectivity
LAN connectionEthernet In
Wireless connectivityWi-Fi / Bluetooth
Internet accessWired / Wireless
Ports & slots
HDMI ports4 In
USB ports2
Digital audio output1 Optical Out
Input positionSide
Size & build
VESA mount pattern300 mm x 200 mm
Size (WxHxD)67.7 in × 41.6 in × 10.6 in
Dimensions with stand67.7 in × 41.6 in × 10.6 in
Size without stand67.7 in × 38.9 in × 2.0 in
Compatibility
Support video signal480i, 480p, 720p, 1080i, 1080p, 2160p
In the box
Included items1 x Remote, 1 x E-Manual, 1 x Power Cable, 1 x Quick Start Guide, 1 x Stand
Software
Smart TV supportYes
More details
Parental controlsYes
Remote controllerYes

Questions about this item

How much heat and power does the 77" OLED panel draw when it runs all day?

The a8 AI Processor 4K Gen3 manages brightness per scene, and Pixel Dimming turns off individual pixels for perfect black, keeping heat output low during extended viewing.

Which external devices or services must I already have to use the smart features and 120 Hz gaming?

You need a home Wi-Fi 5 network or wired Ethernet for WebOS 26 apps, plus a console or PC with an HDMI 2.1 output to unlock 120 Hz VRR and G-Sync or FreeSync compatibility.

Will my older 1080p Blu-ray player and soundbar work with the four HDMI inputs and optical output?

Yes — the TV accepts 480i through 2160p signals on all four HDMI ports and provides an optical audio out for legacy soundbars, while the 2.0 Ch down-firing speakers handle everyday viewing.

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