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4.7 | 10 Reviews

LG CX 77 inch Class 4K Smart OLED TV w/ AI ThinQ® (76.7'' Diag)



  • Self-lighting OLED: Perfect Black, Intense Color, Infinite Contrast
  • 9 Gen 3 AI Processor 4K with AI Picture Pro/Sound Pro
  • Dolby Vision IQ and Dolby Atmos
  • webOS + ThinQ AI w/ Magic Remote

Quick Specs

  • Type: OLED TV
  • Width: 67.8"
  • Height: 40.3"
  • Depth: 10.6"
  • Energy Star Rated: No
  • Screen Size: 77"
  • WiFi Connected: Yes

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This item has purchase restrictions.

We currently only offer this product for purchase within 80 miles of our store. Questions? Contact us for more information.

LG OLED TVs work seamlessly with NVIDIA G-SYNC®

Experience immersive gaming like never before. Only OLED TVs with NVIDIA G-SYNC** compatibility can provide the exceptional picture quality of perfect black and intense colors combined with smooth gameplay to take gaming to new heights.

HDMI speeds are faster than ever

A higher frame rate, VRR (Variable Refresh Rate), ALLM (Auto Low Latency Mode) and eARC (Enhanced Audio Return Channel) all meeting the latest HDMI specifications. These latest features allow fast-moving content in higher resolution and smooth, synchronized graphics. It's more lifelike gaming experience.

Don't lag behind the competition

Dominate your way to victory with LG OLED TV. With a low input lag and fast 1ms response time, get ready to play in full-force with reduced blurring and added clarity. Feel truly in-game with high-speed motion and gameplay.

Turn up your HDR gaming experience

High Dynamic Range isn't just for movies. HDR gaming drops players right into the action for a new level of immersive gaming. LG has joined some of the biggest developers and tech companies in gaming to ensure the best HDR gaming experience.

The leading name in cinematic sight and sound

Dolby ups the action, driving their best-in-class HDR format to new cinematic heights. Dolby Vision IQ* automatically adjusts picture settings depending on ambient lighting conditions and content genres. Dolby Atmos® puts you in the middle of the action with multi-dimensional surround sound that seems to flow all around you.

See a director's vision for sound and picture settings

Film buffs can see what directors envisioned. Filmmaker Mode™ is a setting that respects the craft. It translates a director's cinematic vision to your TV with automatic picture and processor settings and brings true authenticity.

Curious about webOS" Take a quick tour

webOS is your portal to a world of entertainment. Learn about all the things you can do with your LG smart TV - easily stream your content, search for information and much more.

All your favorites, all in one place

Disney+ gives you full access to stream classics, binge on new Originals, or catch the latest movies. With Disney, Pixar, Marvel, Star Wars and more - there's something for everyone.

The home of Apple TV+ and much more

Original shows and movies from Apple TV+. Just the premium channels you want and thousands of movies to buy or rent. It's personalized and expertly curated, so you'll discover the best of what's on. And it's all in the Apple TV app.

See more, stream more with LG Channels

LG OLED TVs are bringing more entertainment options than ever. LG Channels deliver free access to over 180 IP streaming channels offering movies, shows, breaking news, sports, comedy and more - integrated alongside over-the-air channels and channel guide.

See what makes the magic remote so magical

We'll show you how easy it is to access and control your LG smart TV. Customizable features, point-and-click, voice controls, it's all here. Get ready to be amazed.

Sports Alert keeps you up to date on your favorite teams

Sports fans have a new way to stay informed. Sports Alert gives updates on your favorite teams, start times, and scores - even while you're watching other content. Easily switch to games without searching for the channel. NFL, NBA, MLB, NHL, Premier League and more - it's all here.

Fluid motion puts you in the moment

OLED Motion Pro is technology you see, but don't notice. It's our most advanced motion handling for fast movements in sports and action sequences. Kickoff returns look just as smooth at home as from 50-yard line seats, with less stuttering to slow down the big car chase.

Connect Bluetooth® speakers for instant surround sound

Connecting LG Bluetooth speakers for wireless surround sound has never been easier. Connect up to two speakers, including LG XBoom Speakers, for a true surround sound experience - not a wire in sight.

See how OLED redefines picture quality

Once you've seen LG OLED TV with your own eyes, you'll understand. It's stunning picture that redefines quality. Millions of OLED pixels emit their own light independently and can be completely turned off. This unveils perfect black, over a billion rich colors and infinite contrast. From the gridiron to the iron throne, no detail goes unseen.

See more of your content in 4K

Just because it wasn't filmed in 4K doesn't mean you can't see it that way. Our most advanced 4K processor uses AI and deep learning to authentically upscale lower resolution content, translating the source to 4K's 8.3+ million pixels. The technology is so good, you might mistake non-4K for true 4K*.

World's most intelligent TVs

LG ThinQ AI TVs are the only TVs with the Google Assistant and Alexa built-in*. LG ThinQ fully integrates the voice assistants you already use. No need to buy a separate device. Convenience and connected home control are at your command, making it easy to control other smart devices and LG smart products.

See a work of artistic design

Perfect lines. Unbelievably thin bezel. Impossibly slim. Flexible by nature. LG OLED TVs are designed, crafted, and engineered to put the spotlight on your content, yet complement your home's interior even when it's turned off.


  • Self-lighting OLED: Perfect Black, Intense Color, Infinite Contrast
  • 9 Gen 3 AI Processor 4K with AI Picture Pro/Sound Pro
  • Dolby Vision IQ and Dolby Atmos
  • webOS + ThinQ AI w/ Magic Remote
  • Gaming: G-SYNC Compatible, FreeSync, VRR, ALLM
Display Type OLED
Display Resolution 4K Ultra HD (3,840 x 2,160)
Wide Viewing Angle Yes
Dimming Technology Pixel Level Dimming
Picture Processor 9 Gen 3 AI Processor 4K
Refresh Rate 120Hz (Native)
HDR (High Dynamic Range) Cinema HDR (Dolby Vision®, HDR10, HLG), Dolby Vision IQ, HDR Dynamic Tone Mapping Pro
Contrast Advanced Contrast Enhancer, Face Enhancing, Ultra Luminance Pro
Clarity Quad Step Noise Reduction, Frequency Based Sharpness Enhancer
Color Intense Color, Billion Rich Colors, Advanced Color Enhancer, True Color Accuracy Pro
Motion OLED Motion Pro
Resolution Upscaler AI Upscaling
G-SYNC Compatible Yes
FreeSync™ Yes
VRR (Variable Refresh Rate) Yes
ALLM (Auto Low Latency Mode) Yes
Response Time >1 ms
HGiG Yes
LG ThinQ® AI Yes
Google Assistant Yes
Alexa Built-In Yes
Apple Apple Airplay 2, Apple Homekit
Intelligent Voice Recognition Yes
Home Dashboard Yes
AI Picture Pro / AI Picture AI Picture Pro
Auto Genre Selection Yes (SDR/HDR/Dolby HDR)
Operating System webOS
Magic Remote Control Yes (Point, Click, Scroll, Voice)
Universal Remote Control Yes (Auto Device Detection)
LG Channels Yes
LG Content Store (App Store) Yes
Full Web Browser Yes
Gallery Mode Yes
Sports Alert Yes
Speaker System 2.2 Channel
Output Power 40W (20W Woofer)
Speaker Direction Front Firing (Reflector)
AI Sound Pro / AI Sound AI Sound Pro
Dolby Atmos® Yes
WiSA Ready Yes (Separate Dongle Purchase Required)
Surround Mode OLED Surround
Audio Codec AC4, AC3 (Dolby Digital), EAC3, HE-AAC, AAC, MP2, MP3, PCM, WMA, apt-X (refer to manual)
Bluetooth Surround Ready Yes
LG Sound Sync Yes
Wi-Fi® Standard Wi-Fi Certified 802.11ac
Bluetooth® Support Version 5.0
IP Control Yes
HDMI-CEC (Simplink) Yes
TV Tuner ATSC, Clear QAM
Smart Phone Connectivity Yes
HDMI Input (HDCP 2.2) 4 (1 rear, 3 side)
HDMI Audio Return Channel (ARC) eARC (HDMI 2)
USB Ports (v 2.0) 3 (2 rear, 1 side)
RF Connection Input (Antenna/Cable) 1 (Rear)
AV Input 1 (rear) breakout cable required, not included
Ethernet Input 1 (Rear)
RS-232C Input (Mini Jack) 1 (Rear)
Digital Audio Output (Optical) 1 (Rear)
Headphone Out 1 (Rear)
Power Supply (Voltage, Hz) AC 120V, 50/60Hz
Standby Power Consumption Under 0.5W
TV Dimensions with Stand (WxHxD) 67.8" x 40.3" x 10.6"
TV Dimensions without Stand (WxHxD) 67.8" x 39.1" x 2.2"
Packaging Dimensions (WxHxD) 74.6" x 44.5" x 11.2"
Stand Width 47. 2"
TV Weight with Stand 79.1 lbs
TV Weight without Stand 58.9 lbs
Packaging Weight 108.7 lbs
VESA Mounting (W x H) 400 x 200
Remote Magic Remote
Remote Control Battery Yes
Power Cable Yes
Quick Start Guide Yes
E-Manual Yes
Country of Origin Mexico
2020 Model Yes
Limited Warranty Please see Support tab for full details on the limited warranty
UPC 719192639614

Quick Specs

  • Appearance

  • Type: OLED TV

  • Dimensions

  • Width: 67.8"
  • Height: 40.3"
  • Depth: 10.6"

  • Features

  • Energy Star Rated: No

  • Size

  • Screen Size: 77"
  • WiFi Connected: Yes

Download Energy Guide

Owner's Manual English 5,860K 07/09/2020

Quick Setup Guide English 13,039K 05/28/2020

Get Adobe Reader

* Documents require Adobe Reader.

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

4.7 out of 5

100% of reviewers recommend this product.

5 Stars

Home theater

Isaac Baroal 6/12/2023

A big improvement for all our tv watching and entertainment
Originally posted on

Yes, I recommend this product

 Incentivized Review

5 Stars

Cinema Perfection

DP808 2/16/2023

As a cinephile the quality of the image is extremely important to me. My LG OLED provides the highest quality image at home I have ever seen. Beautiful contrast and blacks. Cant go back now that Ive gone OLED.
Originally posted on

Yes, I recommend this product

 Incentivized Review

5 Stars

Sharp Bright and Beautiful rich color

Bgrand3 2/9/2023

First experience with an OLED system and LG got this right. I have a 4K LED tv and I was blown away at how much better the OLED was for contrast color and richness of blacks. The 77 is definitely a two person job to set up. It is light enough but the size requires two people. The set up is well thought out from the unboxing to the menu system of the tv. I am very happy with the purchase
Originally posted on

Yes, I recommend this product

4 Stars

Great TV with one exception - the remote

Mikelsmo 1/29/2023

Ppicture is sharp with great color and the smart TV functions work seamlessly. That being said I am connected to SONOS sounder with rear speakers and subwoofer. I am moving off cable tv and going to YouTube TV and the TV remote will not control SONOS volume. Why? After a lot of research talking to SONOS and LG techs support LG is one of the few manufacturers that use Radio Frequency RF remotes. Others use Infrared IR remotes. RF remotes will not work with SONOS. So if you want to use SONOS you may want to consider other brands.
Originally posted on

Yes, I recommend this product

5 Stars

unbeatable beauty

dave6687 12/26/2022

I just love the deep blacks and 4k detail I have owned the TV for over a year now and I still sometimes watch 4k oled demo videos on youtube If I were to nit pick I would only say that sometimes I mute the TV and the speaker mute icon never goes away although it does dance around to avoid burn in.
Originally posted on

Yes, I recommend this product

5 Stars

Excellent feature

Arav 12/19/2022

I bought this TV on Thanksgiving sale from Costco. The picture quality is excellent and brightness color combination is great. Sound quality is good and connected to my external speakers works perfectly well. I will recommend my friends and family to check out.
Originally posted on

Yes, I recommend this product

 Incentivized Review

5 Stars

Solid image with SUPERB tech

DogeDogDude 12/8/2022

The LG TV is phenomenal. At 77 inches it always delivers a clear view even in low Rez transmissions. The great part about it as a 2022 TV is that it has advanced integrated smart TV capabilities. It joins up with ring Alexa and Seamlessly runs all my streaming with Disney HBO plus prime etc. without having to get additional parts. It also has a function to appear like artwork which you can have scrolling in the background and it literally looks like a painting on the wall. The TV is unreal. action sports on the OLED make all other TVs worthless. There is no streaking you can see the players names etc. I cannot encourage you more to buy it. Using a PS5 is seamless no lag superb image LG uses a magic cursor to navigate and its just you moving the remote in the air like a wand to choose things. No having to repeatedly click a button to go across the screen you just quickly and efficiently use your wrist to chose letters/apps. So cool. The price is also dramatically lower than ever before. Do it Do it
Originally posted on

Yes, I recommend this product

5 Stars

Wonderful until it wasnt.

Onezorb 9/28/2022

I have had this OLED for 18 months and LOVED it. Blackest black and great colors. Full of functionality. Then I had a problem where a vertical bright line showed up when deep blue or purple was the back round right where the line shows when it does the OLED refresh. But alas- LG and Costco had me covered I exchanged it and got a new TV last Saturday.
Originally posted on

Yes, I recommend this product

 Incentivized Review

4 Stars

Was great while it lasted

1Zorb 9/23/2022

I bought this TV 18 months ago. I was wonderful and full of features. LG updated the software frequently to add functionality. The mouse type controller was great once I got used to it. Unfortunately it has developed a bright verticals line on it. But Costco Concierge is covering it for me. Its a CB little trouble to return a 77 TV but honestly I like it do well Im going to get another one. Maybe an 80 ? Bigger wont fit
Originally posted on

Yes, I recommend this product

 Incentivized Review

4 Stars

Great Picture

Need help please 9/18/2022

I am enjoying this TV best one Ive every bought. We now have 3. Only concern the stand for the 77 in makes the tv lean backwards. Had to lift the back Ive reported this but have not heard a word back. Just hope the stand does not break because everything will come falling down.
Originally posted on

Yes, I recommend this product