Thanks, Helson, but X1 box is always ON. I have not used any power saving mode on it, that I know of. It was always fine when the TV was attached directly to the X1 box. It is seems something between the TV and Marantz handshake, even though one would think the passthrough should make a hardwire connection directly from the TV to the cable box. I have switched HDMI cables, run firmware updates on both the Marantz and the TV, but still no change. It seems not to be the X1 box not waking up but the TV not making the connection.

It is just odd.