Ok, just an update
I manually configured mythtv, edited the media scenario changed the device and template to reflect that of mythtv player and changed the 11 to 1; it worked, that is the box played through mythtv, either clicking on tv or the media scenario that was created - this is on the core/hybrid.
I subsequently edited the other scenarios for the other rooms, but clicking on tv or the scenario on those MD's, gives me a blank screen, better than what is was getting before, the gui of mythtv. I can change the channel on the box from the MD's, but I get no picture or sound. Checked the mythtv log on the md (30_..., can't remember and can't check, I am in work) and all seemed well, but the Spawn_mythtv...log, show a timeout, hopefully this weekend I am not working so I can get the MD's to work also.
One other thing, I had looked all through the settings of mythtv, and the scenarios, saw no place to change the aspect ration to 16:9 - the box is outputing 16:9, and the MD's are 16:9 - even added the aspect ratio for mythtv in the scenario, setting it to 16:9, no luck; did not enter a value for stream, still trying to find the appropriate value.