I've recently purchased a playbar to output content from my ATV 3, Roku 3 and Fire TV stick to my Samsung TV. Mine is one that doesn't pass through Dolby 5.1 through the optical connection, so I've recently purchased a Tendak HDMI matrix switch to play with.
I've setup the switch with the ATV 3 and it's all working - HDMI out / Dolby Auto going into the HDMI switch. Then HDMI out - HDMI STB on the Samsung (assume that's the right one) and Optical out to the playbar.
However, I'm not having any luck with the Roku 3 (seems like only stereo output is coming through) and I also can't figure out how to get TV sound to pass through the switch either. Do I need a TV with HDMI ARC to make this work?
Thanks - hoping others must have been through something similar!