Hello, I am currently building a video wall with 4 50 in tv's. I am sending the AV signal to HDMI input 1 on each tv from a video wall matrix swith and want to send the audio signal back from each tv with HDMI ARC to my home theatre receiver. How can I run 4 HDMI ARC lines to my receiver? It has a single ARC Input which works for one tv, but if I want to change the audio from the other TVs how do I bring that signal via ARC? Will a standard HDMI 4x1 ARC switch work? Does anyone have any suggestions? I would like to use HDMI vs Optical so I can gain the ATMOS setup. Thank you.