Originally Posted by Tassie Devil
Actually that is possible. What you would need is a quality HDMI splitter.

Thanks but I think rather than go through that I can use phantom sources to do what I want. I had a lot of trouble with my initial setup so I haven't been able to spend time figuring out how to do the phantoms. To create a phantom is easy but I am not entirely sure how to ensure that I get the audio from one device and the video from another this way. I know you have to use the "last valid" for the source but I'm not sure how you can ensure that the "last valid" is always the audio source you want.

MD600(2x2TB); iPad Pro
LR. 818v3, 8000SE
HT. 861v8+ID41,HD621; BW 2x802D,HTM1D,4x804S;SVS sub; Mac 5 MC501s; RGP 600Pro, JVC X950; Radiance Pro; Oppo 203
FR. G65, DSP3200-3300 DSW, HD621; Mac MC152; Oppo 103, PDP TCP65VT60, Radiance 2124; RGP1200C
4. G65, DSP3200-3300,HD621; OPPO 83, Radiance XE PDP
5. 818v3; Prime HP Amp; HD800