I'm experimenting with ARC from my Samsung Display to the RX-A3060. I'm running a netflix app from the display with one arc compatible cable connected to the dsplay and AVR. The display recognizes the HDMI arc from the AVR and offers me the choice to send sound out to the AVR. On the AVR side, the cable which was advertised to be 4K and be arc compatabile , is connected to HDMI1 out which is also ARC compatible. ARC is enabled on the AVR as is sync but yet, I get no output..