11.5.0.4235-94 does it make the HDMI ARC update to HDMI eARC? I read a firmware update can do this, if what I read is correct. Under ARC it says: to use your home audio system, connect an HDMI cable from the arc port (HDMI 1) to the ARC/eARC port on your home audio system. Not sure if this means its been updated to eARC on the TV.
