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Old 20th February 2018, 19:03   #489  |  Link
Asmodian
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Join Date: Feb 2002
Location: San Jose, California
Posts: 4,406
Well, you can but the TV will probably assume it is BT.709. HDR added the ability to send metadata to the TV. Before HDR most devices didn't worry about color space very much and just assumed the input was in a particular one (B7.709 for HD). Using HDR mode the data could be fully SDR and as long as the metadata is appropriate it could look correct, but you need the TV to pay attention to metadata, which they usually only do in a HDR mode.

My LG OLED C79 has a DCI-P3 mode (it assumes SD input is DCI-P3) and an "extended" BT.709 mode that I suppose assumes BT.709 input but displays it a bit stretched because who cares about standards?
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