LG B6 OLED77B6GUA 77.8"
The 77-inch OLED panel delivers near-infinite contrast with self-lit pixels, powered by the A8 AI Processor 4K Gen3 for automatic picture and sound optimization. Its gaming performance is a standout, offering a 0.1ms response time, 120Hz refresh rate, and full support for NVIDIA G-SYNC and AMD FreeSync Premium across four HDMI 2.1 ports. This TV is best for console and PC gamers who demand blur-free, ultra-responsive motion on a massive cinematic display.
Snapshot
The 30-Second Version
A 99th-percentile gaming monster trapped in a 36th-percentile TV body. Buy it for the speed, not the cinema.
Pros & Cons
Pros
- Best-in-class gaming performance with a 0.1ms response time 99th
- Infinite contrast ratio you only get from OLED 97th
- Four full-bandwidth HDMI 2.1 ports for all your consoles 89th
- Huge 77-inch screen is an immersive beast 79th
Cons
- Picture quality processing is surprisingly mediocre
- Out-of-box accuracy is a weak spot for a premium TV
- Only a 2.0 channel speaker system, you'll want a soundbar
- Customer satisfaction scores are alarmingly low
The proof
Performance
The gaming performance on this thing is a genuine shocker, in the best way. It landed in the 99th percentile in our database, which is basically the top of the charts. The 0.1ms response time and 120Hz panel with G-Sync and FreeSync support make motion incredibly clear. But then you look at the picture quality score, sitting at a disappointing 36th percentile, and it's a real letdown. The α8 AI Processor just doesn't seem to be doing the heavy lifting needed for clean upscaling and accurate colors compared to other OLEDs, which is a head-scratcher at this size and price.
Specifications
Full Specifications
Display
| Size | 77" |
| Resolution | 4K |
| Panel Type | OLED |
| Backlight | OLED |
| Aspect Ratio | 16:9 |
| Curved | No |
Picture Quality
| Contrast Ratio | Infinite |
| Motion Tech | OLED Motion |
| Processor | α8 AI Processor 4K Gen3 |
HDR
| HDR Formats | Dolby Vision, HDR 10, Hybrid Log-Gamma (HLG) |
| Dolby Vision | Yes |
| HDR10+ | No |
| HLG | Yes |
Gaming
| Refresh Rate | 120 Hz |
| Response Time | 0.1 |
| VRR | G-SYNC Compatible (NVIDIA Adaptive Sync), FreeSync (AMD Adaptive |
| ALLM | Yes |
| Game Mode | Yes |
Smart TV
| Platform | webOS |
| Voice Assistant | Other |
| Screen Mirroring | Apple AirPlay, Google Cast |
| Works With | Google Home, Apple Home |
Audio
| Speaker Config | 2 |
| Dolby Atmos | Yes |
| Surround Sound | Dolby Atmos |
| eARC | Yes |
Connectivity
| HDMI Ports | 4 |
| HDMI Version | 2.1 |
| USB Ports | 2 |
| Wi-Fi | Wi-Fi 5 |
| Bluetooth | 5.3 |
| Ethernet | Yes |
| Optical Audio | Yes |
| VESA Mount | 300x200 |
Power & Size
| Power | 161 |
| Energy Star | No |
| Annual Energy | 296 |
| Weight | 22.9 kg / 50.5 lbs |
vs Competition
The obvious competitor is the Sony BRAVIA XR XR77A95L. It's more expensive, but Sony's processing will absolutely smoke the LG B6 in picture quality for movies and TV shows. The Sony is the choice for cinephiles. On the flip side, if you want to save a ton of cash and still get great gaming, the TCL QM7K Series gets you most of the way there with a much better picture score in our tests, just without the perfect blacks of OLED. The LG B6 sits in a weird middle ground where it's not the best picture and not the best value.
| Spec | LG B6 OLED77B6GUA 77.8" | Sony BRAVIA 9 K85XR90 | Samsung Neo QLED QN75QN990FFXZA | Hisense U8 Series 100U8QG | TCL QM6K Series 55QM6K | Roku Plus Series 65R6C7 |
|---|---|---|---|---|---|---|
| Screen Size | 77 | 85 | 75 | 99.5 | 55 | 65 |
| Resolution | 3840x2160 | 3840x2160 | 7680x4320 | 3840x2160 | 3840x2160 | 3840x2160 |
| Panel Type | OLED | Mini-LED | QD-Mini-LED | Mini-LED | QLED | Mini-LED |
| Refresh Rate | 120 | 120 | 120 | 165 | 144 | 60 |
| Hdr | Dolby Vision, HDR 10, Hybrid Log-Gamma (HLG) | HDR 10, Hybrid Log-Gamma (HLG), Dolby Vision | HDR10, HDR10+, HLG | Dolby Vision, HDR 10+, HDR 10, Hybrid Log-Gamma (HLG) | Dolby Vision, HDR10+, HDR10, HLG | Dolby Vision, HDR 10+, Hybrid Log-Gamma (HLG) |
| Smart Platform | webOS | Google TV | Tizen | Google TV | Google TV | Roku TV |
| Dolby Vision | true | true | false | true | true | true |
| Dolby Atmos | true | true | true | true | true | true |
| Hdmi Version | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 | 2.1 |
| Compare | Compare | Compare | Compare | Compare |
| Product | HDR | Audio | Smart | Gaming | Display | Connectivity | Social Proof | Picture Quality |
|---|---|---|---|---|---|---|---|---|
| LG B6 OLED77B6GUA 77.8" | 76.8 | 78.3 | 79 | 99.2 | 96.9 | 88.9 | 21.9 | 36.7 |
| Sony BRAVIA 9 K85XR90 Compare | 76.8 | 96.9 | 91.6 | 79.3 | 94.5 | 92.7 | 88.1 | 79.8 |
| Samsung Neo QLED QN75QN990FFXZA Compare | 85.1 | 99.5 | 84.7 | 88.3 | 99.6 | 99.9 | 99.9 | 85.3 |
| Hisense U8 Series 100U8QG Compare | 91.5 | 98.2 | 95.7 | 95.1 | 94.5 | 86 | 77 | 98.8 |
| TCL QM6K Series 55QM6K Compare | 98.8 | 88.1 | 97.5 | 93.4 | 77.8 | 88.9 | 88.1 | 98.7 |
| Roku Plus Series 65R6C7 Compare | 76.8 | 82.3 | 99.8 | 58.9 | 85 | 88.9 | 94.5 | 36.7 |
Price
Value & Pricing
Pricing is all over the map, with a spread from $2225 to $3865. At the low end, you're getting a massive OLED gaming monitor that's hard to beat for pure speed. At the high end, you're getting fleeced. If you can snag it closer to that $2225 mark, it's a compelling, if flawed, giant screen. Just don't pay a premium for it.
Read more
Overview
The LG B6 is a massive 77-inch OLED that absolutely nails it for gaming but stumbles hard where it matters most for a TV this expensive: picture quality out of the box. It's a weird mix of top-tier gaming chops and surprisingly mediocre image processing for movies and shows. If you're building a dedicated gaming cave and want a huge, fast screen, keep reading. If you want the best possible picture for your movie nights, we need to talk about some other options first.
Common Questions
Q: Is this TV good for a bright room?
It's an OLED, so it won't get as bright as a high-end QLED like the Samsung QN900F. It handles reflections decently, but for a sun-drenched room, you'll be fighting glare. This TV is happiest in a light-controlled space.
Q: Does it support 4K at 120Hz on all HDMI ports?
Yes, all four HDMI ports are the full 2.1 spec, so you can have a PS5, Xbox Series X, and a high-end PC all plugged in at once without swapping cables. It's a huge plus for gamers.
Q: Is the built-in audio any good?
No, it's pretty weak. It's a 2.0 channel system with no dedicated bass. For a screen this size, you should absolutely budget for at least a decent soundbar. The Dolby Atmos support is just for passing the signal through eARC to a better system.
Who Should Skip This
If you're looking for the best possible movie-watching experience and care deeply about accurate colors and clean upscaling of old content, this isn't it. Go get the Sony BRAVIA XR XR77A95L instead. Its picture processing is in a different league.
Verdict
The LG B6 is a niche champion. It's a phenomenal, no-compromises gaming display that happens to also be a TV. But as a general-purpose home theater screen, its mediocre picture processing is a real buzzkill. Buy it for a gaming room, not your main living room, and only if you find a great deal.
