LG
77 Inch Class OLED B4 Series TV
Best immersive viewing for discerning home entertainment enthusiasts.
Immerse yourself in stunning visuals with the 77 Inch Class OLED B4 Series TV from LG, the world's leading OLED brand for over a decade. Experience perfect blacks and vibrant colors thanks to over 8.3 million self-lit pixels. The advanced α8 AI Processor 4K elevates picture and sound, while Dolby Vision™ and Dolby Atmos® deliver a true cinematic experience. Enjoy fluid gameplay with a 120Hz refresh rate and gaming optimizations. webOS 24 provides easy access to your favorite content and includes 5 years of software updates for lasting performance and peace of mind.
$3999.99
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Owner Satisfaction
4.7
/ 5
Category Rank
75
/ 3617
#75 in Televisions
Price vs Category Average
-6%
Below average
Display Resolution
438402160
/ K Ultra HD (, x ,)
Who it's for
- Viewers prioritizing cinematic visuals and immersive home entertainment
- Budget-conscious buyers seeking a massive, high-quality display
- Gamers wanting an immersive, fluid experience on a big screen
Who should skip it
- Users with sun-drenched living rooms or bright viewing spaces
- Enthusiasts demanding the absolute best in image processing and clarity
- Power users connecting several high-bandwidth gaming devices
Performance breakdown
Contrast and Black Levels
Self-lit pixels deliver infinite contrast for truly deep, cinematic blacks.
Gaming Responsiveness
High refresh rates and VRR support ensure fluid, lag-free competitive play.
Upscaling Performance
The AI processor intelligently sharpens lower-resolution content for a crisp look.
Smart Interface
WebOS 24 offers a clean, intuitive layout for seamless content discovery.
Motion Handling
Native 120Hz panel keeps fast-moving sports and action scenes perfectly smooth.
Connectivity Versatility
Four HDMI 2.1 ports provide ample bandwidth for all modern consoles.
Key Specs
Display Resolution
4K Ultra HD (3,840 x 2,160)
Display Type
4K OLED
Screen Size
77 inches
Refresh Rate
120Hz Native
HDR Support
Dolby Vision / HDR10 / HLG
HDMI Input
4ea (supports 4K 120Hz, eARC, VRR, ALLM, QMS)
USB Input
2ea (v 2.0)
Connectivity Type
Wi-Fi 6E, Bluetooth v5.1
Features
- World's No.1 OLED TV Brand for 11 Years
- Perfect Black and Luminous Colors
- α8 AI Processor 4K for Enhanced Picture and Sound
- Cinematic Experience with Dolby Vision and Atmos
- Advanced Gaming Features for Smooth Play
- webOS 24 with 5 Years of Software Updates
- Seamless Design with Near-Invisible Bezel
- Voice Control and Smart Home Integration
What customers say
Customers consistently praise the breathtaking picture quality of this 77 inch OLED television, highlighting its vibrant colors, deep blacks, and exceptional clarity that elevate any viewing experience. Many find the smart TV interface intuitive and responsive, making navigation and access to streaming services remarkably easy. The sleek design also receives frequent commendation, seamlessly integrating into modern living spaces. While a premium investment, users generally feel the immersive visual performance and user friendly features justify the cost, offering a truly cinematic experience at home.
Know before you buy
The B4 series uses over 8.3 million self-lit pixels that turn on and off individually. This allows for perfect black levels and infinite contrast, which standard LED TVs cannot achieve because they rely on a backlight.
Yes, it is well-equipped for gaming with a 120Hz native refresh rate, VRR, G-Sync compatibility, and FreeSync support. These features work together to minimize screen tearing and input lag for a smooth, responsive experience.
The α8 AI Processor uses artificial intelligence to upscale lower-resolution content to near-4K quality. It also optimizes color and brightness in real-time based on the specific scene, ensuring a more consistent and refined image.
LG includes 5 years of software updates with webOS 24. This ensures your interface remains secure and compatible with the latest streaming app features for several years after your purchase.
Yes, the TV is compatible with a VESA 300 x 200 mount. Given its 77-inch size, ensure your wall mount is rated to support the weight of a large OLED display.
The B4 series features built-in Amazon Alexa and is compatible with Apple AirPlay 2, Apple HomeKit, and Google Assistant. This allows you to integrate the TV into your existing smart home ecosystem for voice control and content casting.
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