“What does it mean that this TV does not support 2.1? Would this effect the sound or HDR source?”

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• HDMI input version 2.1 is not featured on this TV. HDMI 2.1 is the most recent update of the HDMI specification and supports a range of higher video resolutions and refresh rates including 8K60 and 4K120, and resolutions up to 10K. Dynamic HDR formats are also supported, and bandwidth capability is increased up to 48Gbps. HDMI supports a bandwidth of 40GBPS which supports up to 4K 120P 4:4:4/RGB 10bit. ^Daphane

  Answered by LG Digital Customer Care 5 years ago

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