What it gets right
- A bright picture that is easier to see during the day
- Quantum Dot 1 billion colours for brighter detailed scenes
- Smoother movement for sport and modern games
- connection 2.1 x 4
The compromises
- control over bright and dark parts of the picture and the extra brightness used by modern films performance vary considerably between similarly named ranges
- Built-in sound may need a soundbar for clear dialogue and scale
- Only the 65-inch model and its price are used in this review
Buy it—or leave it?
- You specifically want precise contrast & incredible brightness with bright-screen television
- The 65-inch model version fits your needs
- You have compared the drawbacks with similarly priced alternatives
- control over bright and dark parts of the picture and the extra brightness used by modern films performance vary considerably between similarly named ranges
- Built-in sound may need a soundbar for clear dialogue and scale
- Only the 65-inch model and its price are used in this review
What would you like to do now?
Choose the route that matches how confident you feel. The free review stays free whichever route you choose.
Check today’s price
£679 for 65-inch model
Confirm the exact model and screen size with the retailer before paying.
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Get my personal TV shortlist — £29Includes two follow-up repliesWhat it is actually like
Open any section for the detail behind our verdict.
01Watching television and films
TCL C6K is easiest to understand through what it changes in normal use. You get a bright picture that is easier to see during the day. You also get quantum Dot 1 billion colours for brighter detailed scenes.
02Where it earns its price
Quantum Dot 1 billion colours for brighter detailed scenes. Smoother movement for sport and modern games. connection 2.1 x 4. That only matters if you will use it regularly.
03What may frustrate you
control over bright and dark parts of the picture and the extra brightness used by modern films performance vary considerably between similarly named ranges. Built-in sound may need a soundbar for clear dialogue and scale. Only the 65-inch model and its price are used in this review. If one of these affects how you will use it, a different model is the safer choice.
Price and value
The exact 65-inch model version was listed at £679 in the UK when we checked on 17 August 2026. At £679, the 65-inch TCL C6K must stand on its own rather than borrowing the price of a smaller set. Prices can move, so confirm the model, configuration and final basket total before buying.
Price last checked 17 August 2026This price check is more than two weeks old. Use the retailer link for the latest price; this review is temporarily excluded from the buying finder until the price is refreshed.
Who will notice the difference?
Best fit
Choose it when precise contrast & incredible brightness with bright-screen television will be directly useful in your everyday life.
living with it
Quantum Dot 1 billion colours for brighter detailed scenes is the second feature to weigh against the price, support and any extra accessories or subscriptions.
Wrong fit
control over bright and dark parts of the picture and the extra brightness used by modern films performance vary considerably between similarly named ranges; spending more or less on a better-matched alternative can be the smarter decision.
What else should you consider?
£679 · TCL C6K is compared at 65 inches so screen size cannot disguise a price difference, while screen type, brightness and motion decide the better fit.
Our review process
We checked the exact product against the independent and official sources listed below. Technical details inform the performance and value scores, but we explain what those findings mean in everyday use.
Read our editorial standards