As per the HDMI specifications, HDR is supported by HDMI 2.0 or later. If so, how can a TV with HDMI 1.4 support HDR content from Netflix? Also, the TV specifications say
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HDMI 1.4 officially detailed: Ethernet / Audio Return channels, 3D, 4K x 2K support | Engadget
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HDMI 2.1 vs DisplayPort 1.4 Comparison - Tech Centurion