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Overview

Get ready for an extraordinary viewing experience with the LG C5Y webOS smart TV. Its OLED dimming backlight and 4K Ultra HD resolution deliver breathtaking picture quality. The Alpha 9 AI Processor Gen8 fine-tunes both sound and visuals in real-time for a flawless experience. Plus, the downward-firing speakers enhance your entertainment with immersive sound.

LG 77" C5Y 4K UHD HDR OLED Smart TV (OLED77C5YUA) - 2025 - Only at Best Buy

Model: OLED77C5YUA
Web Code: 19277609
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Screen Size: 77 in

65 in $1,999.99
77 in $3,299.99
Scheduled Delivery

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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
  • Quick Start Guide

Endless content in superior clarity

  • 77-inch screen with brilliant 4K ultra HD resolution delivers stunning clarity and immersive detail
  • Smart TV lets you easily stream your favourite shows, movies, and apps
  • OLED dimming backlight delivers deep blacks and enhanced contrast by precisely controlling each individual pixel for impressive picture quality

Lifelike visuals

  • HDR (High Dynamic Range) enhances every scene with great brightness, contrast, and lifelike colour for a more realistic viewing experience
  • Bright room ready with perfect black and perfect colour ensures vibrant, true-to-life visuals with deep contrast—even in well-lit rooms
  • Next-gen Alpha 9 AI Processor Gen8 optimizes picture and sound in real time for an immersive viewing experience tailored to your content

Immersive sound and effortless multitasking

  • Downward firing speakers deliver clear sound that reflects off surfaces to fill the room evenly for a more engaging audio experience
  • webOS offers a user-friendly, intuitive interface with seamless multitasking and efficient resource management

Smart features

  • Preloaded apps, including Netflix, Disney+, YouTube, Prime Video, Apple TV+, and LG Channels provide a wide range of entertainment options
  • Built-in Amazon Alexa and compatibility with Google Assistant, and Apple HomeKit offer seamless voice control and smart home integration
  • Wi-Fi and Bluetooth enable fast, wireless connectivity for seamless internet access and device pairing
  • Compatibility with Apple AirPlay 2 allows effortless streaming of content from Apple devices to compatible screens or speakers

Flexible device connectivity and installation

  • Three USB media ports, one optical digital audio output, and four HDMI inputs offer versatile connectivity options
  • Included 300mm x 200mm wall mount specification provides a secure and flexible installation option
Product Condition
Brand New
ENERGY STAR certified
Yes
Model Year
2025

Video

Screen Size
77 in
Resolution
4K Ultra HD
TV Display Technology
OLED
Backlight Technology
OLED Dimming
High Dynamic Range (HDR)
Yes
Dolby Vision
Yes
IMAX Enhanced
No
Refresh Rate
120 Hz
Panel Shape
Flat

Audio

Speaker Configuration
Downward Firing

Inputs/Outputs

HDMI Inputs
4
Component Video Inputs
No
Coaxial Cable Inputs
No
Optical Digital Audio Outputs
1
USB Media Port
3 - Back
Internet Connectivity
Wi-Fi
Bluetooth
Yes
Works with Apple AirPlay
AirPlay 2
Chromecast built-in
Yes
Wireless Standard Generation
Wi-Fi 5
DLNA Certified
Yes
TV Operating System
webOS
Preloaded Apps
Netflix; Disney+; YouTube; Prime Video; Apple TV+; LG Channels
Motion Control
Yes
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

Physical Features

Wall Mount
Included
Wall Mount Specification
300 mm x 200 mm

Dimensions With Stand

Width with Stand
171.1 cm
Height with Stand
103.5 cm
Depth with Stand
2.67 cm
Width with Stand (Inches)
67.36 in
Height with Stand (Inches)
40.75 in
Depth with Stand (Inches)
10.51 in
Weight with Stand
27.1 kg

Dimensions Without Stand

Width without Stand
171.1 cm
Height without Stand
98.2 cm
Depth without Stand
4.71 cm
Width without Stand (Inches)
67.36 in
Height without Stand (Inches)
38.66 in
Depth without Stand (Inches)
1.85 in
Weight without Stand
23.5 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 .