In order to get the audio out of my TV and into the HUB(WISA) it was recommended I use HDMI ARC output from my TV and connect it to the HUB only thing is, forgot to ask which input on the HUB to use. There are four HDMI connections labeled "IN" of these, one of them is labeled HDCP 2.2. There is no connection labeled HDMI ARC? So which do I use?