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Can't change volume - One Connect Box - 8k 75" Class Q900 QLED Smart 8K UHD TV (2019)

There are no HDMI inputs on the back of the TV itelf, so you have to connect everything to the one connect box.  When you change the volume on your cable box remote, or your Apple TV remote, etc, it doesn't change the tv volume.  You HAVE to use the samsung remote anytime you wanna change the volume.  It's really stupid that you pay that much money for a TV and it can't even accept a volume change command from a different remote.