So, I've routed the cable box to the TV, but I'm not sure how to get sound from the TV to the surround sound receiver. The HDMI from the eArc to the receiver isn't sending sound to it. Isn't it an "In" port rather than out?
You may have to go to the menu and select the out. Depends on if you're doing analog or digital. I'm using an optical out to my receiver but I am using the same receiver I bought in 2007.