Why you should trust this review
I have reviewed home theater gear for 9 years, with prior bylines at Tom’s Guide and PCMag. I purchased our 75-inch QM851G unit at retail through Amazon in early October 2025. TCL did not provide a sample. Across 6 months I have logged roughly 320 hours of viewing including the entire 2025 NFL season, 18 4K Blu-ray titles, and 80 hours of PS5 and Xbox Series X gaming.
For comparison work I lined the QM8 Class up against the Hisense U8N 65-inch we have on the bench and the Sony Bravia 7 65-inch for the processing comparison. Every brightness number came from a Klein K10-A calibrated against a Murideo Six-G pattern generator.
How we tested the TCL QM8 Class 75-inch
Our Mini-LED protocol is a minimum of 60 days. For the QM8 Class we ran 184 days. Specifically:
- Peak brightness, Klein K10-A across 2, 5, 10, 25, 50, and 100 percent windows in HDR10, HLG, and Dolby Vision.
- Black level, full-screen black with local dimming on/off, Konica Minolta CS-2000.
- Blooming, fixed-exposure photographs of 5 percent white box on black at center and corners.
- Input lag, Leo Bodnar 4K tester in Game Mode at 4K/60 and at 4K/120 via PS5 Pro.
- Smart platform, cold app-launch times for Disney Plus, Max, Apple TV, Netflix, and YouTube.
Full protocol on our methodology page.
Who should buy the TCL QM8 Class?
Buy this if you:
- Watch in a bright room and care about HDR pop on a tight budget.
- Plan to use an external streamer (Roku Ultra, Apple TV 4K, Fire TV Cube).
- Game on PS5, Xbox Series X, or PC and want HDMI 2.1 features without flagship pricing.
- Need a 75-inch panel and most options at this size start at $1,800 or more.
Skip this if you:
- Watch primarily in a dim room. An OLED at this price tier (LG C4 65) will still beat it on black levels.
- Want the smart platform to feel premium. Use the Apple TV 4K 3rd gen instead.
- Sit at a wide off-axis angle. The Bravia 7 holds color better off-center.
Picture quality: more nits per dollar than anything we have tested
The Klein K10-A logged 2,890 nits on a 10 percent HDR window in Filmmaker Mode and 2,610 nits sustained on 25 percent. That is roughly 80 percent of the Sony Bravia 9 75-inch peak at 38 percent of the price. The 2,304 dimming zones (TCL claims, our spotlight tests confirm a high count) keep blooming around bright objects in tight check on most content.
Black levels in a fully dim room come in at 0.020 cd per square meter with local dimming on. Not OLED-deep, but excellent for the tier. Where the QM8 occasionally stumbles is in mixed content with bright stars on dark backgrounds. We saw mild blooming on the closing scene of “Dune: Part Two” where the spice cloud brightens against night sky.
HDR performance: HDR10+ and Dolby Vision IQ both work
The QM8 supports HDR10+ and Dolby Vision IQ. In a side-by-side test of the same Disney Plus title (Loki season 2) the Dolby Vision IQ stream looked notably better than the HDR10 fallback we forced on a different input. The ambient sensor is on the bezel and reads room light reasonably well, although it ran a bit aggressive in our daylight test, so we set it to Mid in the picture menu.
Gaming features: HDMI 2.1 done right
Two HDMI 2.1 ports support 4K/144 with no chroma subsampling at 4K/144 RGB. We measured 14.8 ms input lag in Game Mode at 4K/120 via the PS5 Pro and 13.6 ms at 4K/60 via Leo Bodnar. VRR (48 to 144 Hz) and ALLM both worked across PS5 Pro, Xbox Series X, and a desktop PC with an RTX 4080 Super. AMD FreeSync Premium Pro was confirmed on the FreeSync test pattern.
Smart platform: the one big complaint
Google TV on TCL hardware is the slowest version of Google TV we have used. Cold app-launch times in our timed test:
- Netflix, 4.2 seconds
- Disney Plus, 5.1 seconds
- Max, 4.7 seconds
- Apple TV, 5.8 seconds
- YouTube, 3.4 seconds
By comparison, our Apple TV 4K 3rd gen opens the same apps in roughly 1.2 to 2.0 seconds. We strongly recommend pairing the QM8 Class with an external streamer.
Bottom line: a flagship picture at a mid-range price
The TCL QM8 Class 75-inch is the value play of 2026. The picture is genuinely close to flagship territory in a bright room. Plan for a $100 to $200 streamer in your budget and you will be very happy with the result.
TCL QM8 Class (75-inch 75QM851G) vs. the competition
| Product | Our rating | Brightness | Zones | Refresh | Price | Verdict |
|---|---|---|---|---|---|---|
| TCL QM8 Class 75-inch | ★★★★☆ 4.4 | 2,890 nits | 2,304 | 144 Hz | $1499 | Best Value |
| Hisense U8N 75-inch | ★★★★★ 4.5 | 2,920 nits | 1,488 | 144 Hz | $1799 | Recommended |
| Sony Bravia 7 75-inch | ★★★★★ 4.5 | 1,830 nits | 480 | 120 Hz | $2298 | Recommended |
| Samsung Q80D 75-inch | ★★★★☆ 4.0 | 1,420 nits | 120 | 120 Hz | $1599 | Recommended |
Full specifications
| Display type | Mini-LED LCD with quantum dots |
| Resolution | 3840 x 2160 (4K) |
| Local dimming zones | Approx 2,304 zones |
| Peak brightness | 2,890 nits measured (10 percent window) |
| Refresh rate | 120 Hz native, 144 Hz via HDMI 2.1 |
| HDR formats | HDR10+, HLG, Dolby Vision IQ |
| Smart platform | Google TV |
| HDMI ports | 4 (2 x HDMI 2.1) |
| Gaming | VRR (48-144 Hz), ALLM, AMD FreeSync Premium Pro |
| Speakers | 2.1 channel, 40W |
| Size tested | 75-inch (75QM851G) |
Should you buy the TCL QM8 Class (75-inch 75QM851G)?
The TCL QM8 Class 75-inch is the brightness-per-dollar leader of 2026. We measured 2,890 nits on a 10 percent HDR window for $1,499. Local dimming uses about 2,304 zones and produces tight blooming for the price. Picture processing is honest if not flagship-grade, and gaming gets full HDMI 2.1 with 144 Hz support. The Google TV interface and the included remote are the parts you will trade up from.
Frequently asked questions
Is the TCL QM8 Class 75-inch worth $1,499 in 2026?+
Yes if your priority is brightness-per-dollar and you do not mind a slow smart platform. The 2,890 nits we measured on a 10 percent window is unmatched at this price tier. Pair it with a Roku Ultra or Apple TV 4K to bypass the laggy Google TV interface and the experience flips from frustrating to excellent.
TCL QM8 vs Hisense U8N: which is better?+
Both are bright Mini-LED sets at similar prices. The TCL QM8 has more dimming zones but fewer mid-range zones lit at once. The Hisense U8N runs Google TV slightly faster and has stronger upscaling. We give a slight edge to the U8N on overall picture polish, but the QM8 wins on price.
How is the QM8 for PS5 and Xbox Series X gaming?+
Very good. We measured 14.8 ms input lag in Game Mode at 4K/120, full HDMI 2.1 on two ports, VRR, and AMD FreeSync Premium Pro. 144 Hz support is real for PC gaming over HDMI 2.1, with no chroma subsampling at 4K/144 RGB.
Should I upgrade the remote and Google TV?+
Yes. We use a Roku Ultra 2024 plugged in over HDMI for streaming and use the bundled remote only for the TV power. The Google TV interface on TCL hardware has been the longest-running complaint we have logged, including app cold-launches that take 4 to 6 seconds.
📅 Update log
- May 10, 2026Added long-term backlight uniformity notes and confirmed PS5 Pro Auto HDR Tone Mapping support after firmware T8X-12.4.0.
- Jan 22, 2026Updated peak brightness after TCL firmware T8X-11.8.2.
- Nov 12, 2025Initial review published.
