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Overview

Experience the next level of home entertainment with the LG 77" B5 4K UHD HDR OLED Smart TV, designed to transform how you watch, play, and connect. Enjoy breathtaking picture quality, immersive sound, and smooth motion for movies, shows, and games—all from your couch. Powered by the webOS platform and the Alpha 8 AI Processor Gen2, it delivers intuitive smart features and optimized performance for seamless streaming and control.
  • 77" 4K OLED display is ideal for immersive viewing in large entertainment spaces
  • OLED technology delivers exceptional contrast and wide viewing angles

LG 77" B5 4K UHD HDR OLED 120Hz Dolby Vision/Atmos FILMMAKER MODE webOS Smart TV (OLED77B5PUA) - 2025 - Great for Movies & Gaming

Model: OLED77B5PUA
Web Code: 19281952
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Sold and shipped by Best Buy

Screen Size: 77 in

48 in $999.99
77 in $2,399.99
83 in $3,499.99

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Manufacturer's Warranty

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For Quebec residents: See the Availability Guarantee disclosure in the Specifications section below.

What's included:

  • Magic Remote Control
  • Battery
  • Power Cable
  • Quick Start Guide
What you need to know
  • 77" screen, 4K Ultra HD resolution; ideal for dedicated home theatres and large entertainment spaces
  • OLED Smart TV with webOS for easy access to apps and streaming content
  • OLED display delivers exceptional contrast, deep blacks, and vivid colour
  • HDR and Dolby Vision provide enhanced contrast and lifelike colour on supported content
  • 120Hz native refresh rate for ultra-smooth motion and responsive gaming
Screen, Picture & Resolution
  • 77-inch 4K Ultra HD OLED display delivers an expansive, crystal-clear picture with stunning detail
  • OLED dimming backlight produces deep blacks and more vibrant colours for excellent picture quality
  • Perfect Black and Perfect Colour from 8.3 million self-lit pixels for accurate and powerful visuals
  • High Dynamic Range (HDR) brings great contrast, bright highlights, and more vivid colours
  • Dolby Vision provides superior brightness, contrast, and colour accuracy for a cinematic experience
Motion & Modes
  • Native 120Hz refresh rate keeps fast-paced action smooth, whether gaming or watching sports
  • FILMMAKER MODE shows movies the way directors intended by turning off extra processing
Smart Features
  • webOS platform features a smooth interface, quick app access, and voice control support
  • Preloaded apps including Netflix, Disney+, YouTube, Prime Video, Apple TV+, and LG Channels provide a wide range of entertainment (subscription may be required)
  • Built-in Amazon Alexa and compatibility with Google Assistant and Apple HomeKit for hands-free TV and smart home device control
Audio
  • Downward-firing speakers deliver clear, balanced sound for all your entertainment
  • Dolby Atmos creates immersive, three-dimensional audio that puts you in the centre of the action
Connections & Compatibility
  • Wi-Fi and Bluetooth support provide simple wireless streaming and device connectivity
  • Four HDMI 2.1 inputs, one optical digital audio output, and two USB media ports offer flexible connections for your AV setup
  • Optional 300mm x 200mm wall mount allows for flexible, space-saving installation
Additional Features
  • Alpha 8 AI Processor Gen2 optimizes picture and sound quality for an immersive viewing experience
This description was generated by AI and reviewed for accuracy.

For Quebec residents – Disclosure under the Consumer Protection Act

In compliance with Bill 29, Best Buy and third-party sellers on Best Buy Marketplace do not guarantee the availability of replacement parts, repair services, or maintenance information for any products. Coverage provided through any Best Buy Protection programs and applicable manufacturer warranties, if any, remain in place. Information about the manufacturer’s availability guarantee can be found .