TCL 6 Series Model 65R648 Review


It’s only been a couple of years since TCL exclusively competed in the entry-level and mid-level TV market. The introduction of the mini-LED backlight has allowed the company to play at the higher level, and the 8K UHD model number 65R648 reviewed here shows that it was not a technological fluke.

The good news for interested consumers is that TCL’s 65R648 isn’t just one of the better The 8K UHD TVs we’ve tested are also easily the least expensive.

Design and features

The TCL 65R648 is a 65-inch (64.5-inch measured diagonally), 10-bit, 120 Hz class TV with 8K UHD resolution (7680 x 3840 pixels). The matrix backlighting uses the aforementioned mini-LEDs, which are divided into 160 zones (240 zones on the 75-inch model). More on the meaning of that number later.

This review is part of TechHive’s coverage of the best smart TVs, where you will find reviews of competing offerings, as well as a buyer’s guide on the features to consider when purchasing this type of product.

The TV has a very slim bezel, weighs a hefty 70.1 pounds (about 73 pounds with the stand), and sports a square 400mm VESA mounting pattern. It is an attractive unit; honestly though, you really need to dig deep into the bargain bin to find an ugly one these days.

tcl ports 65r648 TCL

The port selection on the TCL 65R648 will suit most people’s needs.

There are four HDMI ports, two of which support the full HDMI 2.1 bandwidth specification (8K @ 120Hz). Port four supports eARC for uncompressed 7.1 audio output. Other ports include coaxial for cable and antennas, ethernet, optical audio out, 3.5mm audio out for headphones, and a single USB-A 2.0 port.

Wi-Fi is 802.11ac, but as with all Roku TVs (sadly), there is no user Bluetooth. Roku is trying to push users to buy Roku proprietary audio devices, as if the market needed another standard.

The TCL 65R648 supports most of the latest technologies, including variable refresh rates, THX game mode, Dolby Atmos, Dolby Digital, and Dolby Digital Plus; but apparently it lacks support for DTS. High dynamic range support includes Dolby Vision, HDR10, and HLG, but there is no HDR10 + support if the specs are correct. Siri, Google, and Alexa are also supported.

How can TCL market an 8K UHD TV for so much less than the competition? We’re not sure, especially given today’s shipping realities. Market shenanigans? Proceed as your conscience dictates.


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