The forthcoming TCL 8-Series 8K Roku TV takes a lot of what we liked about the TCL 6-Series 4K Roku TV and quadruples the pixel count while slimming down the thickness. At the starting size of 75 inches, it’s a sight to behold.

At CES 2019, we discovered that the 2019 TCL Roku TV (or TCL X10 QLED outside the US) is also pushing QLED and mini LED technology to improve the picture quality. It’s use of these smaller LEDs offers more local dimming, specifically 300% more contrast control zones compared to its last-generation sets.
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https://www.techradar.com/reviews/tcl-8-series-8k-qled-roku-tv