TCL QM8 Class 75-inch Review (2026): The

Why you should trust this review

I have reviewed home theater gear for nine years. I bought this 75-inch QM8 Class at retail in early October 2025. TCL did not provide a sample. Over six months I logged roughly 320 hours of viewing across the entire 2025 NFL season, 18 4K Blu-ray titles, and 80 hours of console gaming. A TV this size is a long-term commitment, so I lived with it through a full sports season and a stack of films and games before settling on a verdict.

For comparison I lined it up against a competing bright Mini-LED and a Sony set for the processing comparison, all on the same bench. Every brightness figure came from a calibrated meter against a reference pattern generator.

How we evaluated

My Mini-LED protocol runs a minimum of 60 days; for the QM8 I went 184. I measured peak brightness across 2, 5, 10, 25, 50, and 100 percent windows in HDR10, HLG, and Dolby Vision. I measured black levels full-screen with local dimming on and off, photographed a small white box on black at fixed exposure to judge blooming, measured input lag with a dedicated tester in Game Mode at both 4K/60 and 4K/120, and timed cold app launches for the major streaming services against the competition.

Picture quality: more nits per dollar than anything I have tested

The meter logged about 2,890 nits on a 10 percent HDR window in Filmmaker Mode and held around 2,610 nits sustained on a larger 25 percent window. That is roughly 80 percent of the brightness of a true flagship at a fraction of the price. The high zone count, around 2,304 dimming zones, keeps blooming around bright objects in tight check on most content. My spotlight tests confirmed the dimming behaves like a genuinely high-zone panel rather than a marketing number.

Black levels in a fully dark room measured very low for the tier, excellent for a Mini-LED LCD even if not OLED-deep. Where the QM8 occasionally stumbles is mixed content with bright stars on dark backgrounds, where I caught mild blooming on a night-sky scene. For a bright living room and daytime sports, though, the brightness-per-dollar here is unmatched.

HDR performance: both major formats, both working

The QM8 supports HDR10+ and Dolby Vision, so it handles whatever your content is mastered in. In a side-by-side of the same streaming title, the Dolby Vision stream looked clearly better than the forced HDR10 fallback. The ambient light sensor on the bezel reads room light reasonably well, though it ran a touch aggressive in my daylight testing, so I set it to its middle setting. With those small tweaks the picture is genuinely close to flagship territory in a bright room, which is the whole point of this set.

That bright-room performance is the single best reason to buy this TV over a cheaper alternative. Daytime sports, with sunlit fields and bright jerseys, look vivid and punchy even with the curtains open, where a dimmer set would look washed out and flat. The combination of high peak brightness and quantum-dot color volume means HDR content keeps its impact in real lighting conditions rather than only in a darkened home theater. Across a full sports season I watched plenty of games in bright afternoon light, and the picture held up every time, which is exactly the scenario this set is engineered for and where it earns its value.

Gaming: HDMI 2.1 done right

Two HDMI 2.1 ports support 4K at up to 144 Hz with no chroma subsampling at full RGB. Input lag in Game Mode measured around 15 milliseconds at 4K/120 and under 14 milliseconds at 4K/60, both excellent. Variable refresh rate and auto low-latency mode worked across the current consoles and a high-end PC, the 144 Hz support is real for PC gaming over HDMI 2.1, and AMD’s FreeSync variant is confirmed. For a value set, the gaming feature set is complete and leaves nothing meaningful out.

Smart platform: the one big complaint

The smart platform on this hardware is the slowest version of it I have used. In my timed tests, cold app launches for the major services ran four to six seconds each, where a dedicated streaming box opens the same apps in roughly one to two. Combined with a cheap, unlit bundled remote, the built-in experience is the part of this TV you will want to route around.

The fix is simple and I strongly recommend it: plug in an external streamer over HDMI and use the bundled remote only for power. Do that and the experience flips from frustrating to excellent. The built-in audio is also thin, so budget for a soundbar if you watch movies; for everyday viewing it is adequate.

Off-axis viewing is the other honest weakness worth flagging. Sitting directly in front, the picture is excellent, but move to a wide angle, the edge of a sofa or a kitchen sightline, and color saturation and contrast fall off more than they would on a Sony or LG panel. In a typical living room where most people sit roughly centered, this rarely comes up, and across six months it never bothered me in normal viewing. But if you have a wide room with seating spread across a broad arc, it is a real consideration, and one of the few areas where the more expensive sets justify their premium.

Who should buy the TCL QM8 Class 75-inch?

Buy it if you watch in a bright room and want HDR pop on a tight budget, you plan to use an external streamer, you game on a current console or PC and want HDMI 2.1 without flagship pricing, and you need a 75-inch panel where most options cost considerably more.

Skip it if you watch mostly in a dim room, where an OLED at a similar price still wins on black levels; you want the built-in smart platform to feel premium; or you sit at a wide off-axis angle, where a Sony holds color better.

The verdict

After six months, the QM8 Class 75-inch is the value play in big-screen TVs. The picture is genuinely close to flagship in a bright room, the gaming feature set is complete, and the brightness-per-dollar is the best I have measured. The catch is a sluggish built-in smart platform that you should plan to bypass with a cheap external streamer. Budget for that and a soundbar, and you will be very happy with what this set delivers for the money.