What is the LG B6?
Connections & Control
The sideways-facing connections are comprised of three USB ports (two 2.0 and one 3.0) and four HDMI 2.0a inputs, the second of which supports ARC (Audio Return Channel). Unlike the more expensive G6, all the HDMI inputs support for Ultra HD 4K 50/60p, HDR and HDCP2.2, which we confirmed using our Murideo Fresco Six-G test pattern generator. However you will need to make sure you have turned on HDMI Ultra HD Deep Colour in the General sub-menu to watch HDR correctly. There is also a 3.5mm analogue out/headphone jack facing sideways, along with a CI (Common Interface) slot.
Features & Specs
LG OLED55B6V Recommended Settings
Picture Settings - Out-of-the-Box
Picture Settings - Calibrated
Picture Settings - High Dynamic Range
MORE: What is Dolby Vision?
We had no issues with screen uniformity, yellow tint or dead pixels; nor were there any signs banding, lines on the screen or other such issues, which is good. The panel in the B6 was also free of any uniformity, discolouration or other issues and just delivered a great looking image. As we would expect from an OLED, the off-axis performance was also excellent and of course there was none of the haloing you get from the local dimming technology on LCD TVs.
However, since OLED is a self-emitting technology there is the possibility of image retention and even screen burn. We certainly had image retention on occasion with our B6 review sample but only with high contrast test patterns that we left up for quite a long time. LG have gone to great lengths to minimise these issues and safety features include dimming the screen if a static image is left up and washing the panel whilst in standby. However based on our experiences, we would still recommend being careful and avoid leaving static images up for too long.
The B6 uses 'sample-and-hold', which means the panel displays and holds a static frame until the next one is refreshed. As a result the LG was delivering around 300 lines of resolution with TruMotion turned off. This could immediately be improved by selecting any of the TruMotion options (Smooth, Clear and User) but that will make film-based content look unnaturally smooth and we could see artefacts in some of our test material. So whilst you can certainly experiment with TruMotion when watching sports-based content, we would always recommend turning it off for film-based material.
The B6 has excellent video processing that was able to take standard definition content and effectively deinterlace and scale it to match the native resolution of the panel. The resulting images were, at times, quite watchable and largely free of unwanted artefacts. However we did find that with some content, especially Sky and Now TV, there was evidence of macro-blocking in large patches of colour or in dark scenes that wasn't there when watching similar content on Freeview HD, Blu-ray, Amazon or Netflix. We have experienced issues with artefacts as a result of the CMS previously but in this instance it was definitely content related.
However with most quality high definition sources the B6 delivered absolutely stunning images and the usual wildlife documentaries looked particular impressive. The combination of accurate colours, deep blacks and an impressive dynamic range all helped to deliver fantastic pictures. The wider viewing angles, great motion handling and excellent screen uniformity also played their part and Blu-rays look sublime. Recent purchases like Warcraft looked fantastic and the overall performance of the B6 with high definition content was excellent.
The situation with High Dynamic Range wasn't as clear cut as it was with standard dynamic range content. As with previous OLEDs we've tested, the B6 was able to deliver the specular highlights of HDR with exceptional precision. A scene of helicopters at night in the Ultra HD Blu-ray of Lone Survivor was particularly impressive, with moonlight glinting off metal looking particularly impressive. The same was true of the wider colour gamut and the increased resolution, with The Revenant appearing both detailed and realistic. However as with other OLEDs, the lower peak brightness does sometimes rob the HDR images of some of their impact. The B6 also failed to properly tone map HDR10 content graded at more than 1,000nits, resulting in clipping in scenes like arriving in Neverland on the Pan Ultra HD Blu-ray.
These issues have all been experienced before on other OLED TVs but something that was new was a definite stutter in certain HDR scenes. This stutter was evident in the camera pan across the titular planet's surface at the start of the The Martian on Ultra HD Blu-ray but there were no issues with stutter on the same scene when watching the regular Blu-ray, nor did we see any with Dolby Vision content, which means it is related to HDR10 material. We hadn't experienced this HDR issue with LG's other OLED TVs but it certainly affected our ability to enjoy HDR content on the B6. However we understand that there may be an imminent firmware update coming from LG that fixes the issue, so hopefully owners will be able to enjoy HDR content stutter-free very soon.
LG OLED55B6V Video Review
Input Lag & Energy Consumption
In terms of the B6’s energy consumption it proved to be very efficient and we measured the out-of-the-box Eco picture mode at 147W on a full window 50% white pattern and our calibrated ISF Expert (Dark Room) mode used 81W, whilst the ISF Expert (Bright Room) mode used 98W. Once we moved on to the brighter HDR mode the level of energy consumption increased, with the LG drawing 140W, although that was still impressively low considering.
How future-proof is this TV?
|4K Ultra HD Resolution|
|Colour Space (percentage of Rec.2020 - 100% best)||70%|
|HDMI 2.0a Inputs|
|HDCP 2.2 Support|
|4K Streaming Services|
|Smart TV Platform|
|Picture Accuracy Out-of-the-Box (score out of 10)||9|
- Impressive black levels
- Superb dynamic range
- Accurate greyscale and colour gamut
- Excellent video processing
- Wide viewing angles
- Supports Dolby Vision
- WebOS is highly effective
- Stutter with HDR content
- Macro blocking on some material
- CMS can cause artefacts
- No game mode for HDR
LG B6 (OLED55B6V) UHD 4K TV Review
Should I buy one?
The LG B6 is an impressive Ultra HD 4K TV that demonstrates all the advantages of OLED technology with deep blacks and excellent contrast ratios. The out-of-the-box performance was very good wth an accurate greyscale and colour gamut that approached reference after calibration. The images produced with standard dynamic range content were superb with natural colours, great motion handling and highly capable upscaling. The feature set is also impressive, with the B6 boasting support for Wide Colour gamut and High Dynamic Range, including both HDR10 and Dolby Vision. There's also the Magic Remote and the latest version of WebOS, with 3D being the only real feature missing when compared to the rest of LG's OLED line-up. The energy efficiency is good and the input lag is suitably low, although there is no game mode for HDR gaming.
However the B6 does also demonstrate the limitations of OLED, with some crushed shadows just above black and macro blocking evident in certain content. In addition, LG's colour management system continues to exhibit the usual issues with artefacts if used excessively. The HDR performance was also problematic and not just because an OLED TV can't match the brightness of an LCD TV, although the self-illuminating pixels of an OLED TV does mean greater precision in terms of delivering the peak highlights. However there was also a pronounced stutter evident with HDR content that wasn't present when watching the identical scenes on regular Blu-ray. We haven't seen this stutter on the other LG OLEDs we reviewed this year, so hopefully LG can address the issue with a firmware update in the near future but until then it means that despite the excellent performance of the OLED55B6V with standard dynamic range content, the issues with HDR mean that it drops down to a Recommended award.
What are my alternatives?
If you're in the market for an OLED TV, then LG are pretty much the only game in town at the moment. For fans of 3D you could look at the curved C6 but for those that prefer a flat screen you'll have to pay the extra for the E6 instead. That isn't necessarily a bad thing because along with 3D, you also get the 'picture on glass' design and the built-in soundbar. The B6 might be LG's entry-level OLED TV but at £2,229 it isn't cheap, so if you're open to the idea of LCD there are plenty of options. You can currently get the excellent Sony KD-55XD9305 for £1,599, the superb Samsung UE55KS8000 for £1,549 or the impressive Panasonic TX-58DX902B for £1,999. Whilst the B6 will deliver a superior performance with standard dynamic range content, the LCD TVs can outperform it in terms of HDR and the Sony and Panasonic also include 3D support.
MORE: OLED TV Reviews
MORE: 4K Ultra HD TV Reviews
Contrast/Dynamic Range/Black Level
Picture Quality Out-Of-The-Box
Picture Quality Calibrated
Ease Of Use
Value for Money
Our Review Ethos
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