LG - 50" Class 74B Series QNED AI Mini LED 4K Smart webOS TV (2026)
About this product
MiniLED technology makes color brighter, contrast deeper, and details sharper for a more immersive picture. HDR10 Pro boosts every color for standout clarity, while the Alpha 7 AI Processor Gen9 automatically optimizes picture and sound based on what you’re watching. You'll also experience less searching and more streaming, thanks to LG’s award-winning Smart TV platform: webOS.¹ For gamers, you can quickly customize your gaming experience in one location with the LG Game Optimizer. And, with GeForce NOW & Xbox Cloud Gaming included, you can quickly stream and get int your favorite apps.²
Highlights
Dynamic QNED Color
LG's Dynamic QNED Color and next-gen AI provide vivid color on your screen for a immersive visual experience.
Mini LED Technology
See your screen come alive with Mini LED technology—where tiny lights work together to deliver breathtaking brightness, deeper contrast, and razor-sharp detail. Whether you're watching in a bright room or a dark one, Mini LED ensures every scene looks exactly as it should: vivid, balanced, and incredibly lifelike.
α7 AI Processor 4K Gen9
Enhanced brightness, improved sound, refined picture detail. It all comes together for a thrilling watching experience powered by the α7 AI Processor 4K Gen9.
HDR10 Pro
HDR10 Pro dynamically adjusts brightness, revealing crisp details and vivid color in both bright and dark scenes for a stunning, lifelike picture.³
FILMMAKER MODE
Watch films just how the directors envisioned them with automatic preservation of the director’s original colors, settings and frame rates for a true at-home cinematic experience FILMMAKER MODE with Ambient Light Technology.
webOS 26
No matter which TV you choose, your LG TV makes it easier than ever to find what you need and more. Browse all your favorite streaming apps and let LG Channels connect you to over 400 free channels and 10,000+ movies & shows (on-demand).⁴
LG Channels
Get instant access to over 400 free channels and 10,000+ movies & shows (on-demand).⁵ Discover and enjoy premium new entertainment with nothing more than an internet connection.
LG Game Dashboard and Game Optimizer
LG TVs have ALLM to further improve gaming quality. Whether you game on consoles or on the cloud,⁶ the LG Game Dashboard and Game Optimizer put all the control at your fingertips.
Gallery+
Create, display and express your taste with LG Gallery +. Choose from a collection of high-resolution artwork, scenic photography and other personalization features.⁷ Plus turn your ideas into art with Generative AI.
Dynamic Sports
Dynamic Sports is an exclusive sports experience built into LG’s webOS Smart TVs. It’s designed for fans who don’t want to miss a single play, score, or highlight. By combining live streaming, team tracking, and instant notifications, it makes your TV feel like a personal sports assistant.
LG Shield
The LG Shield helps provide privacy protection against malware, viruses, and other cyber threats with real-time scanning and automatic updates.
- Display TypeLEDResolution4K (2160p)Screen Size Class50 inchesHigh Dynamic Range (HDR)YesHigh Dynamic Range FormatHDR 10, Hybrid Log-Gamma (HLG)
Reviews
Rating 4.7 out of 5 stars with 3 reviews
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
- LG - 65" Class C6 Series OLED evo AI 4K Smart webOS TV (2026)Labor Day Deal$1,499.99
- LG - 77" Class B5 Series OLED AI 4K UHD Smart webOS TV (2025)$1,499.99The price was $2,999.99
Compare similar products
MiniLED technology makes color brighter, contrast deeper, and details sharper for a more immersive picture. HDR10 Pro boosts every color for standout clarity, while the Alpha 7 AI Processor Gen9 automatically optimizes picture and sound based on what you’re watching. You'll also experience less searching and more streaming, thanks to LG’s award-winning Smart TV platform: webOS.¹ For gamers, you can quickly customize your gaming experience in one location with the LG Game Optimizer. And, with GeForce NOW & Xbox Cloud Gaming included, you can quickly stream and get int your favorite apps.²
Bright, detailed colors pair together with deep, cinematic contrast in your favorite smart apps and video games thanks to precise control with Mini LEDs, delivering a realistic picture no matter what you watch. Get thousands of subscription free channels, including 700+ premium channels with Samsung TV Plus. Rest assured your personal data is secured with Knox Security.
The LG OLED B5 is a premium watching experience that offers more than meets the eye. You'll be able to keep pace with the action with a native 120Hz refresh rate for smoother movement whether you're gaming or watching sports. Entertainment extras like Dolby Vision*, Dolby Atmos¹ and FILMMAKER MODE give you the big-picture experience straight from your couch. Enjoy outstanding picture powered by the α8 AI Processor, which uses AI to detect what you're watching and automatically improves the picture and sound quality of whatever you're watching. Search less and stream more, thanks to the next generation of AI technology from LG webOS 25. With Quick Cards, group your favorite apps into categories and even have instant access to over 300 free channels with LG Channels.² All LG OLED TVs have NVIDIA G-Sync, AMD FreeSync Premium and VRR to further improve gaming quality. And four HDMI 2.1 inputs allow you to plug in all the devices you need for the win. Whether you game on consoles or on the cloud,³ the LG Game Dashboard and Game Optimizer put all the control at your fingertips.
The LG QNED7SB AI 4K TV delivers vibrant colorful images for an immersive viewing experience. Mini LED technology adjusts the back lights to maintain deep black levels, allowing you to be fully captivated by your content. You'll enjoy outstanding picture powered by the α7 AI Processor 4K Gen9 which uses AI to detect what you're watching and automatically improves the picture and sound quality. You'll also experience less searching and more streaming, thanks to LG’s award-winning Smart TV platform: webOS. With Quick Cards, group your favorite apps into categories and use the Magic Remote to easily find what you're looking for—like instant access to over 400 free channels with LG Channels.¹ Every moment will be enhanced with virtual 5.1 surround sound for an immersive home theater experience. And transport yourself to the center of superhero-sized action and galaxies far, far away with FILMMAKER MODE that allows you to see films just as the directors’ intended. For gamers, you'll experience real-time action with virtually no tearing from FreeSync, VRR and GeForce NOW for cloud gaming.² Plus, the LG Game Optimizer, Game Dashboard and two HDMI 2.1 ports get you (and keep you) in the action.
| Pros for LG - 50" Class 74B Series QNED AI Mini LED 4K Smart webOS TV (2026) | |||
|---|---|---|---|
| There were no pros for this product— | Picture Quality, Setup Ease, Performance | Picture Quality, Setup Ease, OLED Quality, Refresh Rate, Brightness | Picture Quality |
| Cons for LG - 50" Class 74B Series QNED AI Mini LED 4K Smart webOS TV (2026) | |||
| There were no cons for this product— | Remote Control | Remote Control, User Interface, Button Layout, Processor Speed | There were no cons for this product— |
Specs
What's the difference between the LG qned 74B and the 75b? thanks
Answered by LG Digital Customer CareThe LG QNED74B and QNED75B series are highly similar entry-to-mid-level 4K Mini LED TVs from LG. The QNED74B series is offered in 85", 50", and 43" screen sizes, and it features two HDMI 2.0 ports. The QNED75B is offered in 85", 75", 65", 55", 50", and 43" screen sizes, and it features three HDMI 2.0 ports. The differences between these two lineups generally come down to retailer-specific designations, slight cosmetic design variations (like stand color or bezel finish)...^Ivan.
What does power cable (detached) mean?
Answered by LG Digital Customer CareAs the word "detached' implies, it means the power cord for the LG 50" Class 74B Series QNED AI Mini LED 4K Smart webOS TV (2026), Model # 50QNED74BUA, is not attached (i.e., hardwired) to the TV. It is a detached power cord that plugs into the power socket on the back of the TV...^Ivan.
What's the difference between Gen 9 and/or Gen 3?
Answered by LG Digital Customer CareLG's newer Alpha Gen 9 processors provide significantly faster AI performance, advanced multi-AI assistant integration, and higher-resolution upscaling and audio compared to the older Alpha 9 Gen 3 chips. Alpha 9 Gen 3 (2020) relied on first-generation deep-learning databases to perform basic noise reduction, face enhancement, and standard 4K upscaling. Alpha Gen 9 (2025/2026) features a dedicated NPU (Neural Processing Unit) with massive generational leaps in GPU and CPU power. It delivers much sharper AI Super Upscaling, analyzing scenes at a sub-pixel or nanometer level for vivid clarity. Alpha 9 Gen 3 (2020) powered basic voice commands via LG ThinQ AI and older webOS versions. Alpha Gen 9 (2025/2026): Integrates Multi-AI support—including built-in access to Google Gemini and Microsoft Copilot—alongside an AI Concierge for tailored content recommendations and personalized user profile recognition. Alpha 9 Gen 3 (2020) could up-mix two-channel audio into virtual 5.1 surround sound. Alpha Gen 9 (2025/2026) uses advanced AI Sound Pro algorithms to drive expansive virtual surround sound setups, such as 9.1.2-channel audio. Alpha 9 Gen 3 (2020) pioneered HDMI 2.1 support with 4K at 120Hz, Variable Refresh Rate (VRR), and NVIDIA G-Sync compatibility. Alpha Gen 9 (2025/2026) supports higher peak refresh rates (scaling up to 144Hz or higher for PC gaming) alongside smoother frame-rate handling and lower input lag...^Ivan.
What is weight of TV
Answered by LG Digital Customer CareHello, Gloria! Thank you for sharing your question to us about the LG TV (50QNED74BUA). The TV weighs 18.1lbs without the stand and 18.3lbs with the stand attached. For mounting, the packaging weight is 23.1lbs, and it requires a 300 × 200 mm VESA wall mount. This makes it relatively easy to handle and install, whether you’re setting it up on a tabletop or mounting it on the wall. You can explore the full feature list and support details here: https://www.bestbuy.com/product/lg-50-class-74b-series-qned-ai-mini-led-4k-smart-webos-tv-2026/JJ8VPZZC4V. If you’d like more guidance on compatible mounts or installation tips, please email us at lgdigitalcare@lg.sprinklrsupport.com and we’ll be glad to assist further. — Avril
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