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Company ProductName Specs
Company ProductName Specs
Advantages of the LG B4 (OLED)
- Excellent for dark room
- Excellent for movies & TV
- Very good for sports
- Very good for news, talk, & other TV
- Very good for use as monitor
- Good for upscaling
- Very good motion processing
- Best in class viewing angle
- Excellent reflections
Advantages of the TCL QM8 (LCD)
- Best in class for bright room
Key differences
Movies & TV
9.2
8.3
10/10
CONTRAST
8.00/10
10.0/10
BLACK UNIFORMITY
8.5/10
7.0/10
UPSCALING
4.8/10
Yes
HDR10 SUPPORT
Yes
No
HDR10+ SUPPORT
Yes
Yes
DOLBY VISION SUPPORT
Yes
The LG B4 (OLED) is excellent for movies & TV, while the TCL QM8 (LCD) is very good.
Sports
8.3
6.5
8.0/10
MOTION PROCESSING
4.6/10
120Hz
REFRESH RATE
120Hz
10.0/10
INPUT LAG SCORE
7.6/10
7.0/10
UPSCALING
4.8/10
7.1/10
SDR BRIGHTNESS SCORE
10.0/10
Yes
HLG SUPPORT
Yes
The LG B4 (OLED) is very good for sports, while the TCL QM8 (LCD) is only fair.
Gaming
8.9
8.3
9.4/10
RESPONSE TIME SCORE
8.1/10
10.0/10
INPUT LAG SCORE
7.6/10
8.0/10
MOTION PROCESSING
4.6/10
100.0/100
GAMING LOCAL DIMMING
90.0/100
7.5/10
GAME HDR BRIGHTNESS SCORE
9.3/10
The LG B4 (OLED) and TCL QM8 (LCD) are both very good for gaming, though the LG B4 (OLED) is somewhat better.
News, Talk, & Other TV
8.3
6.8
7.1/10
SDR BRIGHTNESS SCORE
10.0/10
7.0/10
UPSCALING
4.8/10
The LG B4 (OLED) is very good for news, talk, & other TV, while the TCL QM8 (LCD) is only fair.
Bright Room
7.3
9.9
9.5/10
VIEWING ANGLE
5.3/10
7.1/10
SDR BRIGHTNESS SCORE
10.0/10
7.2/10
HDR BRIGHTNESS SCORE
9.3/10
9.2/10
REFLECTIONS SCORE
8.9/10
The TCL QM8 (LCD) is best in class for bright room, while the LG B4 (OLED) is good.
Cost
$2,200
$1,498
$500
$1,000
$1,500
$2,000
$2,500
$3,000
$3,500
The LG B4 (OLED) has a price of $2,200 and the TCL QM8 (LCD) costs $1,498.
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Key similarities
Picture Quality
8.8
8.5
10/10
CONTRAST
8.00/10
8.1/10
COLOR VOLUME SCORE
9.2/10
WOLED
PANEL TYPE
miniLED FALD
WBC
PANEL SUB-TYPE
VA
The LG B4 (OLED) and TCL QM8 (LCD) both have very good picture quality.
Cartoons & Animation
8.7
8.9
8.3/10
COLOR GAMUT SCORE
8.1/10
8.1/10
COLOR VOLUME SCORE
9.2/10
7.1/10
SDR BRIGHTNESS SCORE
10.0/10
8.5/10
COLORS OUT OF THE BOX SCORE
7.6/10
9.5/10
GRAY UNIFORMITY
7.5/10
The TCL QM8 (LCD) and LG B4 (OLED) are both very good for cartoons & animation.
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How the LG B4 (OLED) and the TCL QM8 (LCD) compare to other TVs
Spec Comparison
 |  | |
| LG B4 (OLED) | TCL QM8 (LCD) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,200 | $1,498 | ||
Brand | |||
Brand | LG | TCL | |
Release Date | |||
Release Date | March 1, 2024 | May 1, 2023 | |
Full name | |||
Full name | OLED65B4 | 65QM850G | |
Screen Size | |||
Screen Size | 65" | 65" | |
Screen Resolution | |||
Screen Resolution | 4K | 4K | |
TV FEATURES | |||
|---|---|---|---|
Operating System | |||
Operating System | WebOS | Google TV | |
Sound Quality Score | |||
Sound Quality Score | 7/10 | 7/10 | |
NextGen Ready | |||
NextGen Ready | No | No | |
HDMI Ports | |||
HDMI Ports | 4 | 4 | |
Coax Ports | |||
Coax Ports | 1 | 1 | |
DISPLAY QUALITY SCORES | |||
|---|---|---|---|
Picture Quality Score | |||
Picture Quality Score | 8.9/10 | 8.6/10 | |
Bright Room Score | |||
Bright Room Score | 7.4/10 | 9.9/10 | |
Gaming Score | |||
Gaming Score | 9/10 | 8.4/10 | |
Movies & TV Score | |||
Movies & TV Score | 9.3/10 | 8.3/10 | |
Sports Score | |||
Sports Score | 8.3/10 | 6.6/10 | |
PHYSICAL | |||
|---|---|---|---|
Dimensions w/o Stand (H x W x D) | |||
Dimensions w/o Stand (H x W x D) | 57.0" x 32.8" x 1.8" | 32.6" x 56.9" x 1.7" | |
Dimensions with Stand (H x W) | |||
Dimensions with Stand (H x W) | 57.0" x 35.3" x 9.3" | 34.1" x 56.9" | |
Weight without Stand | |||
Weight without Stand | 37.7 lbs | 50.1 lbs | |
VESA Mount | |||
VESA Mount | 300 x 200 | 300 x 400 | |
DISPLAY | |||
|---|---|---|---|
Color Depth | |||
Color Depth | 10 bit | 10 bit | |
Black Frame Insertion | |||
Black Frame Insertion | Yes | Yes | |
Auto Low Latency Mode | |||
Auto Low Latency Mode | Yes | Yes | |
Contrast | |||
Contrast | 10/10 | 8/10 | |
Local Dimming | |||
Local Dimming | 10/10 | 8/10 | |
SOUND | |||
|---|---|---|---|
Speaker Setup | |||
Speaker Setup | 2.0 | 2.1 | |
Speaker Power | |||
Speaker Power | 20 W | 40 W | |
Dolby Atmos | |||
Dolby Atmos | Yes | Yes | |
DTS:X | |||
DTS:X | Yes | Yes, Bypass only | |
Get a great deal on the LG B4 (OLED) or the TCL QM8 (LCD)
About LG
LG, a prominent TV brand from Korea, has played a significant role in popularizing OLED TVs. OLED technology is hailed as the future of TV technology. Their TVs employ WebOS, a proprietary smart TV software that not only offers seamless functionality but also includes gaming-specific features, earning praise from players worldwide. Often regarded as the gateway to unparalleled viewing experiences, LG's mid-range OLEDs come highly recommended, making them a worthwhile investment for those willing to stretch their budget for superior quality.
About TCL
TCL, the highly recognizable TV brand from China, has firmly established itself as the second-largest manufacturer in terms of sales volume. Renowned for striking an impressive balance between affordability, picture quality, and design, TCL TVs deliver a compelling overall package. While they have traditionally excelled in the low-end and midrange TV segments, TCL has recently made remarkable strides in the realm of high-end televisions, introducing impressive models that rival top competitors. Most TCL TVs use Roku software which is very user friendly and easy to use, but they have a few other models that use Google TV which has the largest app selection, but is not as user friendly as Roku.
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This information was produced and vetted by the PerfectRec TVs team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest TV information and makes it digestible for you.
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About the TV team
Joe Golden, Ph.D
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Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
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Staff Expert & Software Engineer
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Chandradeep Chowdhury
Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
Jaime Roldán
TVs Expert
Jaime is a Colombia-based TV expert. He is an electronics engineer with 8 years of experience in the telecom sector and has been making TV recommendations for 12 years.
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