
LG C3 Series 77-Inch Class OLED evo Smart TV OLED77C3PUA, 2023 - AI-Powered 4K, Alexa Built-in
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AI Verdict
A 77-inch 4K OLED with a 120Hz refresh rate and a9 AI Processor Gen6, this TV is for anyone prioritizing cinematic visuals and high-performance gaming.
This 77-inch 4K OLED TV with its a9 AI Processor Gen6 and 120Hz refresh rate is built for top-tier visual fidelity and fluid motion. Its extensive gaming features and Dolby Vision/Atmos support make it a powerhouse for both cinematic viewing and competitive gaming.
If you need even higher peak brightness for a consistently sunlit room, look for OLED TVs with Micro Lens Array (MLA) technology or high-end Mini-LED alternatives.
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Pros
- The a9 AI Processor Gen6 delivers ultra-realistic picture and sound, analyzing content for optimal settings.
- Brightness Booster improves brightness for luminous picture and high contrast, even in well-lit rooms.
- Gaming features include a 0.1ms response time, native 120Hz refresh rate, NVIDIA G-Sync, AMD FreeSync Premium, and VRR.
- Four HDMI 2.1 inputs allow full compatibility with current-gen consoles and gaming PCs at 4K 120Hz.
- Dolby Vision and Dolby Atmos provide extraordinary color, contrast, brightness, and wrap-around sound for home theater.
- WebOS 23 with Quick Cards and Magic Remote offers a feature-rich smart platform for streaming and app organization.
Cons
- The WebOS interface can feel slower compared to external streaming devices, and the LG app store has fewer options.
- Motion on live sports content could be better, with some users reporting judder with 24fps content when played from a PC.
- While reflection handling is effective, sustained full-window brightness is not as high as some competing mini-LED TVs, making it less ideal for extremely bright rooms.
- The built-in speakers, despite Dolby Atmos support, are often recommended to be supplemented with a soundbar for a truly immersive audio experience.
- Some users report privacy concerns regarding WebOS data collection, requiring acceptance of invasive disclaimers to use all smart features.
Dimension Scores
The OLED panel, 4K resolution, a9 AI Processor Gen6, Brightness Booster, Dolby Vision, and near-infinite contrast deliver exceptionally deep blacks and vibrant colors.
Built-in speakers with Dolby Atmos are present, but user feedback consistently suggests an external soundbar significantly enhances the audio experience.
WebOS 23 offers AI-powered features, Quick Cards, and a Magic Remote, providing a feature-rich and generally snappy user interface.
The 77-inch screen provides immersive viewing, and four HDMI 2.1 ports, along with Bluetooth, Ethernet, USB, and Wi-Fi, offer extensive connectivity options.
Best For
- Home theater enthusiasts seeking deep blacks, accurate colors, and cinematic experiences with Dolby Vision and Atmos.
- Serious console and PC gamers who need 4K 120Hz, 0.1ms response time, G-Sync, FreeSync Premium, and multiple HDMI 2.1 ports.
- Users upgrading from older LCD TVs who want a large, immersive 77-inch display with minimal bezels.
Not Recommended For
- Budget-conscious buyers, as this is a premium-priced 77-inch OLED TV.
- Users who primarily watch static content for extended periods, due to inherent OLED burn-in risk, though anti-burn-in tech is included.
- Those who require maximum sustained full-screen brightness in consistently sun-drenched rooms, where mini-LEDs might offer more.
Watch Out For
- The Magic Remote, while functional with its pointer feature, has been described as 'crap' by some users, and the UI can be frustrating if you're not used to LG's system.
- Accessing ports when the TV is wall-mounted can be difficult if your mount doesn't pull out or swivel, due to port placement on the left side.
- Some users reported 'OLED issues' like grey uniformity problems or poor yellow stability, with LG support being unhelpful in those specific cases.
- The TV's picture mode defaults to 'auto power save' out of the box, which significantly limits maximum brightness; disabling energy saving in settings is required to unlock full brightness.
- Text clarity is not optimal when used as a PC monitor due to the non-standard RGB subpixel layout.
Full Specifications
| ASIN | B0BVX61P9B |
| Brand | LG |
| Voltage | 120 Volts |
| Brand Name | LG |
| Color Name | Black |
| Resolution | 4K |
| Item Weight | 59.7 Pounds |
| Screen Size | 77 Inches |
| Aspect Ratio | 16:9 |
| Refresh Rate | 120 |
| Speaker Type | Built-In |
| Special Features | AI Picture, AI Upscaling, Dimming Technology, Dolby Vision, Dynamic Tone Mapping, FILMMAKER MODE, HDR (High Dynamic Range), Picture Processor |
| Item model number | OLED77C3PUA |
| Display Technology | OLED |
| Product Dimensions | 10.5 x 67.4 x 40.7 inches |
| Included Components | Magic Remote, Power Cable, Quick Start Guide, Remote Control Battery (AA x 2EA) |
| Connectivity Technology | Bluetooth, Ethernet, HDMI, USB, Wi-Fi |
| Standing screen display size | 77 Inches |
What Buyers Say
Many users upgrading from older LCDs or even previous OLEDs are blown away by the picture quality, describing it as 'insane' with 'true blacks' and 'super vibrant colors'. The gaming performance, with its 120Hz refresh rate and low input lag, is a recurring highlight, often called 'a beast'. However, the WebOS interface receives mixed feedback, with some finding it slower than external devices and others appreciating its features. The consensus is that while the built-in sound is acceptable, a soundbar is a must for a complete home theater setup.
“OMG, this 77-inch C3 is absolutely gorgeous, the picture is insane, like, true blacks and colors just pop, gaming on my PS5 is buttery smooth, but seriously, get a soundbar, the built-in sound is just okay.”
Common Praise
- Picture quality with deep, inky blacks and no blooming around bright highlights.
- Exceptionally low response time and input lag for fluid, responsive gaming.
- Excellent low-quality content smoothing and very good low-resolution upscaling.
- Fantastic reflection handling and wide viewing angles, maintaining image accuracy.
- Four HDMI 2.1 inputs fully compatible with PS5, Xbox Series X/S, and gaming PCs.
- The Magic Remote's pointer feature is accurate and stable, making navigation intuitive.
Common Complaints
- WebOS can be slower than external streaming devices, and the LG app store has limited options.
- Motion on live sports could be improved, and judder can occur with 24fps content from a PC.
- The remote control itself is sometimes criticized for its design or perceived cheapness.
- Privacy concerns arise from WebOS requiring acceptance of invasive disclaimers for full smart feature access.
- Sustained full-window brightness is not as high as some competing display technologies, especially in very bright rooms.
- Some users experienced 'grey uniformity issues' or 'poor yellow stability' with no resolution from LG support.
Ownership Tips
- Disabling the 'auto power save' setting is crucial to unlock the TV's highest possible brightness, especially for daytime viewing.
- The TV is surprisingly lightweight for its size (around 50 lbs / 23 kg), but still requires two people for safe handling and installation.
- Connecting devices to the side-mounted ports can be a hassle if the TV is wall-mounted with a fixed bracket.
- The 'Magic Remote's' pointer function is a standout feature, making menu navigation much easier than traditional remotes.
- Even after a year, many users report no burn-in, even with extensive gaming that includes static HUD elements.
Frequently Asked Questions
Does the LG C3 support 144Hz refresh rates?
The LG C3 officially supports a native 120Hz refresh rate at 4K resolution. While some users reported running a C4 at 144Hz, the C3's listed specification is 120Hz.
Is OLED burn-in still a concern with the LG C3?
The LG C3 includes anti-burn-in technology, and some users reported no burn-in after over a year of use with hundreds of hours of games featuring HUDs. However, OLEDs inherently carry a risk, especially with static content displayed for very long periods.
How is the sound quality of the built-in speakers?
The built-in speakers support Dolby Atmos and are considered decent, but many users recommend pairing the TV with a dedicated soundbar for a truly immersive audio experience.
Can I wall-mount the 77-inch LG C3?
Yes, the TV has standard-sized mounting holes on the back. You will need two people for safe installation due to its size, even though it's surprisingly lightweight for a 77-inch TV.
Is the LG C3 bright enough for a room with natural light?
The C3 has very good peak brightness in SDR and HDR and fantastic reflection handling, making it suitable for rooms with some natural light. However, for consistently very bright rooms, its sustained full window brightness might be less than some mini-LED alternatives.
Buying Guide
When you're looking at a TV like this, you're really investing in the core display technology. OLED means each pixel lights itself, so you get perfect blacks and incredible contrast that no LED TV can match. You're also paying for a powerful processor that cleans up lower-resolution content and makes everything look its best, plus all the bells and whistles for gaming and smart features. Don't just look at the screen size; consider how the display technology and processing power translate to what you actually see and experience.
OLED Panel
Unlike LED TVs that use a backlight, each pixel in an OLED panel generates its own light. This means when a pixel needs to be black, it simply turns off, resulting in 'perfect blacks' and infinite contrast, making images look incredibly deep and realistic.
a9 AI Processor Gen6
This is the TV's brain. It uses artificial intelligence to analyze what you're watching and automatically optimizes picture and sound settings. Think of it like having a professional calibrator constantly tweaking your TV for the best possible experience, whether it's a movie, sports, or a game.
120Hz Refresh Rate & HDMI 2.1
The 120Hz refresh rate means the screen can display up to 120 frames per second, making motion appear much smoother, especially in fast-paced action or sports. Paired with HDMI 2.1 ports, it allows modern gaming consoles and PCs to output 4K resolution at this high frame rate, crucial for competitive gaming.
Dolby Vision & Dolby Atmos
These are advanced audio and video formats. Dolby Vision enhances picture quality with more accurate colors, brightness, and contrast on a scene-by-scene basis. Dolby Atmos creates a three-dimensional sound experience, making it feel like sounds are coming from all around you, even overhead, for a more immersive movie or gaming session.
Alternatives
If you need a TV that gets significantly brighter for a room constantly flooded with sunlight, look for a high-end Mini-LED TV. If you're on a tighter budget but still want OLED, consider an older generation C-series or a B-series model, understanding you might sacrifice some brightness and processing power.



