Hi I changed to an arcam 550 back in the spring but have only just started to sort out the av side of it. I previously had an Onkyo 4k av amp which had throughput HDMI which allowed me watch sat or cable tv without switching on the unit. Is the Arcam going to be the same because it has something called ARC and so does the LG OLED556EV tv. The Arcam manual is one of the worst manuals i have ever seen and does not really tell you much and why is it printed in landscape and the size thickness of a telephone book. poor show on that Acam.