The other major difference between the 5- and 6-Series Google TV models and TCL’s Roku TV versions is support for HDMI 2.1 features. With the 5-Series, you get up to 60 zones of full-array local dimming (FALD), while the 6-Series bumps that up to 240 zones, thanks to its mini-LED backlighting system that uses thousands of tiny LEDs. The 6-Series Google TV is also the first TCL model to boast Dolby Vision IQ, a system that uses a TV’s onboard light sensors to automatically optimize Dolby Vision’s settings based on the changing ambient light in your room.

The 5-Series also gets the ability to decode and passthrough Dolby Atmos, something the 5-Series Roku TV can’t do. HDR10+ adoption has been slow among streaming services and TV manufacturers, but given TCL’s sales clout, its move to include the Samsung-backed alternative to Dolby Vision could signal the start of a big change. Previous models (including the existing 5- and 6-Series Roku TVs) only offered HDR10, Dolby Vision, and HLG.

to feature HDR10+ compatibility, in addition to HDR10, HLG, and Dolby Vision. Both the 5- and 6-Series Google TV models will be the first TCL TVs sold in the U.S.

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