The entire traffic is controlled via HDMI, the sound system,
ie all devices are connected there.
There is but only one HDMI port for "Game".
That is why we have ordered the HDMI switch in order to rewire all 3 consoles
and the annoying replugging unnecessary.
Have only the cables connected accordingly and everything worked right away.
To date (since about 2 months), we are very satisfied.
Should change that, I'll correct my rating accordingly.
Time and fast delivery.