The LG OLED B4 is a premium watching experience that offers more than meets the eye. 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 24. 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.
Q: What picture quality enhancement technology does this LG TV use?
A: This LG TV uses Cinema HDR technology to enhance the picture quality.
Q: How many HDMI inputs does this TV have?
A: This TV is equipped with four HDMI 2.1 inputs.
Q: Does this LG TV have built-in Wi-Fi?
A: Yes, this LG TV has built-in Wi-Fi for easy connectivity.
Q: Does this TV include Dolby Atmos?
A: Yes, this TV comes with Dolby Atmos for an immersive audio experience.
Q: How many speakers does this TV have?
A: This LG TV has two built-in speakers.
A: My hunch is many people who want this technology are seeking larger television screens. People seeking 48 inch televisions are likely much more budget minded and picture may not be as important. So this TV is kind of been no man’s land with respect to their marketing audience. so you’re a great TV and a good price.
Q: What is the difference between the B4 model and the C4 model (OLED48C4PUA)?
A: Hi there. Thank you for your question! We understand that you're curious about the differences between the OLED48B4PUA and OLED48C4PUA models. While both offer stunning 4K OLED displays and 120Hz refresh rates, here are a few key differences: Processor: The OLED48B4PUA features the α8 AI Processor, while the OLED48C4PUA is equipped with the more advanced α9 AI Processor Gen7, which provides better image processing and AI upscaling for enhanced picture quality. Gaming Features: The C4 model supports VRR (Variable Refresh Rate) up to 144Hz, AI Upscaling, and Game Optimizer, making it a better choice for gamers. The B4 model is still great for gaming but maxes out at 120Hz for VRR. AI Features: The C4 model also includes additional AI features like AI Picture Pro, AI Sound Pro, and AI Concierge, which are not present in the B4 model. These enhance sound, picture, and overall user experience. Audio: The C4 model has a more advanced 2.2 channel speaker system with Dolby Atmos and AI Sound Pro for a richer sound experience. The B4 model offers a standard 2.0 channel system. Both models are excellent choices, but if you're looking for a more premium experience with advanced processing, enhanced gaming, and AI features, the C4 model might be the way to go! OLED48B4PUA - https://www.bestbuy.com/site/lg-48-class-b4-series-oled-4k-uhd-smart-webos-tv-2024/6584787.p?skuId=6584787 OLED48C4PUA - https://www.lg.com/us/tvs/lg-oled48c4pua-oled-4k-tv#pdp_specs For any further assistance, please send us a private message on social media @LGUSSupport, and we’d be happy to help. —Renzo
Q: Will this have burn in issues because its OLED?
A: Hello there! While OLED technology, including the LG OLED48B4PUA, can be prone to burn-in issues due to its nature of using organic compounds, LG has incorporated several features to help mitigate this risk. These include pixel shift, screen savers, and automatic brightness adjustments. To further reduce the risk of burn-in, it's a good idea to avoid displaying static images for extended periods and use the TV's built-in settings to manage screen usage. If you have any concerns or need more details on managing burn-in, please send us a private message on Social Media @LGUSSupport, and our team will be happy to assist you. We appreciate your attention to maintaining your TV's performance. —Renzo

The LG OLED B4 is a premium watching experience that offers more than meets the eye. 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 24. 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.

Discover a new level of visual and auditory brilliance with our next level smart TV. Powered by Pantone certified color accuracy, witness over one billion authentic hues burst forth in beautiful detail. Quantum HDR takes things further, elevating contrast for lifelike imagery. Add to that our advanced 3D audio system syncing flawlessly with on screen motion, all intelligently powered by Samsung Vision AI. And rest assured, Knox keeps your private info safe and secure.

TCL QM5K Series Smart TV, The New Definition of Affordable Premium, is ideal for fast action movies, sports, and next level gaming TCL’s Halo Control System that includes the New Super High Energy LED Microchip, Condensed Micro Lens, Micro OD Reduced Optical Distance, High Contrast HVA Panel, Enhanced QLED, Zero Delay Transient Response, Bi-direction 23-bit Backlight Controller, and Dynamic Light Algorithm for Stunning “Halo-Free” Images. With Up to LD500 Precise Dimming Series and High HDR Brightness, you’ll experience pure black levels and a great picture in virtually any room lighting environment. TCL's AIPQ Processor, an advanced processor optimizing each scene with machine learning, provides an unrivaled cinematic experience. Motion Rate 240 provides smooth video playback and with TCL's Game Accelerator 144 and Auto Game Mode, gameplay is blistering fast, keeping you ahead of the competition.

TCL QM6K Series Smart TV, The New Definition of Affordable Premium, is ideal for fast action movies, sports, and next level gaming TCL’s Halo Control System that includes the New Super High Energy LED Microchip, Condensed Micro Lens, Micro OD Reduced Optical Distance, High Contrast HVA Panel, Enhanced QLED, Zero Delay Transient Response, Bi-direction 23-bit Backlight Controller, and Dynamic Light Algorithm for Stunning “Halo-Free” Images. With Up to LD500 Precise Dimming Series and High HDR Brightness, you’ll experience pure black levels and a great picture in virtually any room lighting environment. TCL's AIPQ PRO Processor, an advanced processor optimizing each scene with machine learning provides an unrivaled cinematic experience. 144Hz native panel refresh rate with Motion Rate 480 focuses on best-in-class motion clarity producing smooth video playback. With TCL's Game Accelerator 240 and Auto Game Mode gameplay is blistering fast keeping you ahead of the competition. TCL QM6K TVs feature Dolby Atmos, DTS Virtual:X, and an all new ONKYO speaker system with a built-in subwoofer* for high performance spatial sound. TCL QM6K Series Smart TVs are the new definition of Affordable Premium.
| Pros for LG - 48" Class B4 Series OLED 4K UHD Smart webOS TV (2024) | |||
|---|---|---|---|
| Picture Quality, Refresh Rate, Black Levels, OLED Quality, Price | Picture Quality, Setup, Ease of Use, Size | Picture Quality, Brightness, Setup Ease, Weight, Black Level | Picture Quality, Refresh Rate, Responsiveness, Port Count |
| Cons for LG - 48" Class B4 Series OLED 4K UHD Smart webOS TV (2024) | |||
| Remote Control, Software, Stand, Input Lag, Upscaling | Remote Control, Connectivity, Brightness | Gaming Performance, Refresh Rate, Viewing Angle | There were no cons for this product— |
Customers appreciate the 48" Class B4 Series OLED 4K UHD Smart webOS TV (2024) for its exceptional picture quality, amazing black levels, and smooth 120Hz refresh rate, making it a great choice for gamers. The OLED quality and unbeatable price point are also well-received. However, some customers find the remote control takes some getting used to, and a few have noted concerns about the software and stand.
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.
+ Great HDR Min and Max for this price range + G-Sync compatible + 120Hz for Gaming +Deep Blacks and Rich Colors, really showing off the OLED. + No noticeable burn in since being in heavy use from Feb 17, 2025 Currently, I don't have any negatives to report. Quality is great and the burn in worry doesn't seem relevant here as it has many features to keep this from happening. The colors are rich and the black levels are amazing for this price range. I've been gaming since I received it and have been having a great time enjoying the quality of image it provides. I recommend this TV for Gaming or a small bedroom for watching movies.
Posted by WickedDKS
LG Has Mastered the Art of the All-in-One TV. This TV is truly in a class of its own and an incredible value. I've had it for over six months now and haven't had a single issue. The size is a huge upgrade from my previous desk TV, and it's definitely been worth it. It's a fantastic all-in-one TV for both work and play, with so many features packed into one device. When I'm gaming on my Xbox, the quality is absolutely fantastic. This TV is so good that I'm already planning to upgrade the rest of the TVs in my house to this standard. LG really holds its value over time, which is a big deal. I did my research for hours before landing on this one, and I'm so glad I did. I even bought one as a birthday gift for a friend, and it's been a game-changer for movie nights at their place. My favorite feature is the ability to turn off the screen while music plays. If you have a music subscription, you can just use the built-in microphone to ask the TV to continue playing your music with the screen off. The Magic Remote is another standout feature. When you shake the controller, a cursor appears on the screen, allowing you to easily point and click on apps instead of having to scroll through a long list. It's a huge time-saver. The TV comes with all the standard smart TV features you'd expect, like major streaming apps and a store where you can download more, including games. It even automatically recognizes when a console or computer is plugged in. For work, it's super easy to connect to. Just grab the remote and select the device you want to put on the screen either by pressing the input button or on screen import button to change the source. The sound is also incredible. I read a review that almost turned me away because the person said it wasn't loud enough. I have the volume set to 10 out of 100, and it's more than loud enough for the entire room. If you want to blast some music, you can turn it up to 100, and it's so powerful you won't even need a separate speaker. You can also play around with the sound settings to get it just right. The picture quality is equally amazing. The OLED display has crisp picture quality and can be adjusted to be brighter or darker. In the photo I provided, you can see a picture of a Cavetown album playing on the darkest setting. Even with direct sunlight coming in from an open window, the glare is barely noticeable and for example not even noticeable when the brightness is turned up which is provide it in the second photo. The HDMI 2.1 ports and 120Hz refresh rate are a huge plus for gaming and movies. Another great feature is the built-in Wi-Fi, which allows you to wirelessly cast your phone's screen with either Apple Cast or Google Cast. I love using this to show friends and family photos I've taken on a much larger screen. You can also connect any Bluetooth headphones or speakers directly to the TV. This is perfect for those times when you want to watch a movie and feel like you're in a theater or watch something early in the morning without disturbing anyone. Finally, you can also get local news channels for free with other TV stations for free as well as long as you have internet. The remote also has dedicated buttons for Netflix, Prime Video, Disney+, LG Channels, Sling TV, and Alexa, making it even easier to get to your favorite apps. This TV is going to last me for years to come. A huge shoutout to LG for making such an incredible TV and to Best Buy for their excellent shipping and handling. They were kind and efficient, and the entire process was seamless. I highly recommend taking advantage of any Black Friday deals for this TV. If you're lost and don't know what TV to get, this is the one. You won't regret it. P.S. if you found this helpful please give it a thumbs up so others can see the comment as well.
Posted by Ryan25
The LG OLED B4 series is an impressive TV for its price, offering fantastic picture quality and a few standout features, though it’s not without its drawbacks. Picture Quality The TV's OLED panel shines with exceptionally bright HDR performance and incredibly deep blacks, creating a level of contrast that surpasses standard 4K TVs and even slightly edges out QLED technology. Whether watching movies, gaming, or streaming, the visual experience is immersive and vibrant. Build and Design The build quality is solid, albeit slightly heavy. However, this heft translates to durability and a sense of sturdiness. Mounted on the wall with bias lighting, the TV looks stunning and adds a premium touch to any room. Installation is straightforward, and the design feels more robust compared to many competitors. I use mine in a 12x12 room, where it fits perfectly. Additionally, I’ve noticed very little glare, even in bright daytime conditions, making it suitable for a variety of lighting setups. Performance and Gaming While the resolution and refresh rate are impressive on paper, the gaming features fall short in practice. Game Mode and AMD FreeSync didn’t work properly with my AMD RX 6800M GPU, causing the screen to flicker black or shut off entirely. As a result, gaming performance can be hit-or-miss. That said, the TV can function as a decent monitor when it works. I’ve had enjoyable gaming sessions, but the refresh rate never feels quite right, regardless of adjustments. Turning off TruMotion improves performance significantly. Smart Features The TV offers a wide range of apps and integrates seamlessly with Alexa. However, the AI features are underwhelming—I’ve noticed minimal benefits beyond slight sound optimization. Sound Quality One of the standout aspects is the built-in speakers. The sound quality is exceptional, delivering loud and clear audio that eliminates the need for an external sound system. It’s rare to find a TV with speakers this good. The Magic Remote The Magic Remote is functional but frustrating. The cursor behaves inconsistently—if you point the remote away from the screen, it gets stuck on the edge and moves prematurely when you bring it back. For comparison, a Wii Remote re-centers seamlessly, making the LG remote feel clunky and counterintuitive. Customer Service Perhaps the biggest downside is LG’s customer service, which is a nightmare to deal with. They make you jump through hoops to prove the TV has a malfunction before approving warranty service. You’re required to take photos and videos to document the issue, but the pictures often fail to send via text, requiring multiple attempts. Afterward, they may demand a video, but since you can’t record while on a call, they frequently deny warranty claims. This creates a frustrating and time-consuming process that undermines an otherwise excellent product. Despite the TV's strengths, purchasing it comes with the risk of poor support if anything goes wrong. Final Thoughts The LG OLED B4 series offers stunning picture quality, robust sound, and a beautiful design that fits well in most spaces. However, gaming performance can be inconsistent, and the customer service experience leaves much to be desired. While it’s a good TV overall, buyers should weigh the risks of potential support challenges.
Posted by Zito