I tried using the linked zones and it told me that z2 didn't support video when I started a movie and I didn't get any sound in the TV room. I had to then go to the menu and select z1.
Got it, I seem to recall a thread about that exact issue now that I think about it:
http://yabb.jriver.com/interact/index.php?topic=79687.0So here's a thought on a workaround: set up three zones: two that play to your HDMI (z1 and z2) and one that plays to your optical out (z3). Link the optical out zone (z3) to one of the two HDMI zones (let's say z2). Z1 would be unlinked.
Then set up zone switch more or less as mojave described, so that video will always play only in z1, and audio will only play in z2. The linkage between z2 and z3 should ensure that audio goes to both locations, but video will only go to z1. Pay especial attention to the "stop other zones" tab in the zoneswitch set up box, as z1 and z2 obviously can't both be playing at the same time.
That
should work, but I can't test it right now.