Ready? -> It may or may not work. Even if you have all the same maker gear.

That said I continue to hook up in a very specific way. Here's the short version.

1. All sources run to the receiver inputs.
2. The receiver HDMI output goes to the HDTV.
3. One last link is from the HDTV Optical back to the receiver Optical input.

And then many rounds of setup to get it just right.

Only those that have time to lose expect ARC to work. After all the failures I learn not to count on it.