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Overview

Get closer to the action with the LG B3 77" 4K UHD smart TV. Its AI-powered processor optimizes picture and sound quality to make everything you watch feel more immersive, with self-lit OLED technology for realistic colour and contrast. It offers Filmmaker Mode for director-approved movie experiences as well as many competitive gaming features.

LG B3 77" 4K UHD HDR OLED webOS Smart TV (OLED77B3PUA) - 2023 - Only at Best Buy

Model: OLED77B3PUA
Web Code: 17214453
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Best Buy Protection Plan

Return Policy

30 days to return or exchange

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Manufacturer's Warranty

Check with the manufacturer for details or add Best Buy Protection for extra coverage.

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

What's included:

  • Magic Remote Control
  • Battery
  • Power Cable
  • Screws
  • Stand
  • Manual
  • Quick Start Guide

Stunning picture quality

  • a7 Gen6 AI processor 4K uses AI to automatically adjust the picture and sound quality for better viewing experiences
  • Self-lit OLED 4K TV offers over 8.3 million self-lit pixels that produce rich blacks and dynamic colours

Cinematic experiences

  • Dolby Vision brings exceptional colour, contrast, and brightness to your content
  • Dolby Atmos delivers wrap-around sound for cinematic audio experiences
  • Dolby, Dolby Atmos and the double-D symbol are registered trademarks of Dolby Laboratories
  • LG Filmmaker mode lets you view films as the director intended

Gaming done right

  • Native 120Hz refresh rate ensures smooth, realistic movement, even when watching fast-paced sports and movies or playing intense games
  • NVIDIA G-Sync, AMD FreeSync Premium, and VRR ensure exceptional gaming quality
  • Two HDMI 2.0, and two HDMI 2.1 inputs give you plenty of spots to plug in gaming devices
  • LG Game Dashboard and Game Optimizer give you complete control over your game settings

Effortless operation

  • webOS 23 operating system uses AI technology to make it easy to search for something to watch
  • Preloaded with LG Channels for access to over 100 free channels, plus other popular streaming services like Netflix, Prime TV, and Disney+ (internet connection and subscriptions are required; the number of LG channels subject to change)
Product Condition
Brand New
Model Year
2023

Video

Screen Size
77 in
Resolution
4K Ultra HD
TV Display Technology
OLED
High Dynamic Range (HDR)
Yes
Refresh Rate
120 Hz
Colour Enhancement
AI Picture Pro, Dynamic Tone Mapping Pro, AI Brightness Control
Video Modes
10 modes (Personalized Picture Wizard, Vivid, Standard, Eco, Cinema, Sports, Game, Filmmaker, (ISF)Expert(Bright Room), (ISF)Expert(Dark Room))
Panel Shape
Flat

Audio

Audio Enhancement
AI Sound Pro (Virtual 5.1.2 Up-mix), Dolby Atmos®, Bluetooth Surround Ready (2 Way Playback), WiSA Ready (Up to 2.1 channel), Clear
Speaker Configuration
Bottom
Speaker Output Power
20W (10W per Channel)

Inputs/Outputs

HDMI Inputs
4
Coaxial Cable Inputs
1 - Back
Optical Digital Audio Outputs
1 - Back
USB Media Port
2 - Side
Internet Connectivity
Wi-Fi and Wired
Bluetooth
Bluetooth 5.0
Works with Apple AirPlay
AirPlay 2
Wireless Standard Generation
Wi-Fi 5
Other Inputs/Outputs
Ethernet, RS-232C Input (Min Jack)
TV Operating System
webOS
Preloaded Apps
LG Channels (Free TV), Netflix, Prime Video, Disney+, Crave, YouTube, Apple TV, Fubo TV, Global TV app, Tubi, TSN
Voice Control
Yes
Voice Assistant Built-In
Amazon Alexa
Works with Google Assistant
Yes
Works with Amazon Alexa
Yes
Works with Apple HomeKit
Yes
Energy Saving Mode
Yes
ENERGY STAR Qualified
No

Physical Features

Cabinet Colour
Black
Wall Mount
Optional
Wall Mount Specification
400 x 200

Dimensions With Stand

Width with Stand
172.3 cm
Height with Stand
104.3 cm
Depth with Stand
27 cm
Width with Stand (Inches)
67.83 in
Height with Stand (Inches)
41.06 in
Depth with Stand (Inches)
10.63 in
Weight with Stand
30 kg

Dimensions Without Stand

Width without Stand
172.3 cm
Height without Stand
99.2 cm
Depth without Stand
5.53 cm
Width without Stand (Inches)
67.83 in
Height without Stand (Inches)
39.06 in
Depth without Stand (Inches)
2.18 in
Weight without Stand
26.7 kg

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 .