TCL 6 Series/R646 2021 TV Review - Mini LED 4K TV with Google TV

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Published May 29, 2025

The TCL 6 Series/R646 2021 QLED is a 4k TV with Mini LED backlighting. It's part of the 6 Series lineup that includes the TCL 6 Series/R635 2020 QLED, with one of the differences being that the R646 has Google TV while the R635 uses Roku TV. While the TV is an overall improvement from the R635 thanks in part to its better local dimming feature, it's still not as good as other flagship 4k TVs.

TV Review:
https://www.rtings.com/tv/reviews/tcl/6-series-r646-2021-qled

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TV Settings:
https://www.rtings.com/tv/reviews/tcl/6-series-r646-2021-qled/settings

Model tested: 55” (55R646)
Should also be valid for the 65" (65R646) and 75" (75R646).

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00:00 Intro
00:25 Design
01:25 Test Results
06:05 Verdict
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