• 1. If this option is fitted, select the HDMI input via the front panel or app. Check the HMDI ARC settings on your TV and make sure the TV has a HDMI ARC output. If so, connect this via a HDMI cable (which is ARC compatible), to the HDMI input on the rear panel. The sound from the TV will now be routed via Uniti Atom while on the HDMI input.