I noticed something pretty strange. TCL lists all of the models part their 2018 6-Series line as having HDMI 2.0a inputs…except for the 65R615 which the specs says only has 2.0. I find this likely to be an error on TCL’s part, because they say it supports HDR10, which you need at least HDMI 2.0a for. Can anyone offer any insight on that oddity in the 65R615’s specs??