Yes! HDMI, of course.

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I will try that configuration of setting with the X800 later today, (much later cos' life). It would be nice to return the new X700 and get my $$$ back.
I want to thank both you andJoe foreign helpful and kind. I won't get into all the drama of why this took me over a 2 years to sort out but we know what John Lennon said about life!
BTW I was looking at that LightSpeed product. because I did some research about a year ago and I remembered reading about a piece of outboard gear for around $300 that would give you as close to 5.1 with what I have. I can see this product is not that but if either of you have a clue as to what I'm talking about...