Here Is What I Ended Up Doing
Without seeing this in person, I can only offer a loose sugestion. Here is what I did. To get sound from the TV to the receiver, I connected the optical cable from the TV out to the receiver in. In other words, on my TV [an LG] I have an optical cable running from the TV to my av receiver. As soon as I made sure that the optical out from my TV was switched on, I had instant Dolby Digital or DTS surround sound. It works nearly flawlessly. My DVD recorder has HDMI out and I used that connection to my TV and a second optical connection to my av receiver. Apparently, that did the trick, because when I use the DVD recorder, I get fully operational surround sound. I haven't seen that DVR unit, but try it with just the HDMI connection only. If that fails [and if your DVR has an optical out], try hooking up an optical connection between your DVR and the receiver and see what that does. On my receiver, I have a "dedicted" TV and "dedicated" DVD optical connection. If yours is like that, things should be easy. If not, chances are that you can assign them to their tasks. Be ready to do some trial and error runs.