What resolution and HDMI version are the Plasma and Projector? What HDMI/HDCP versions are the source components?

Only HDMI Out 1 on the Model 976 is 4k / HDMI 2.0b / HDCP 2.2 / ARC capable. HDMI Out 2 is not ARC capable, will not display the OSD, and cannot display any UHD sources (as it is HDMI 1.4). the Model 976 has 4 x HDMI 2.0b / HDCP 2.2 inputs (all on the back), and 2 x HDMI 1.4 inputs (one on the front).

I don't recall anyone's descriptions of how using 2 HDMI outs works in practice. I suspect that they don't both work at the same time (due to HDCP) and are available more for backward compatibility of sources and displays so that a specific input selection on the Outlaw correspond to the source and output.

Sorry this isn't easier!