I think I'm starting to get a better grip on the situation. I'm starting to realize that the digital cable channels (i.e. Channel 100+) are broadcasting in digital surround sound (the DD logo comes on when I go to digital channels). Everything below channel 70, however, does not get the DD logo and yet still I hear some type of surround sound coming out of the side speakers. Is this what they mean by stereo sound simulating surround sound? Or am I just not finding shows that are being broadcast in surround sound? For example, if I plan on watching a Nascar race on ESPN, ABC, or Fox this weekend (my channels 25, 5, and 9 respectively) will I be hearing a digital 5.1 surround sound?
Two more questions and, hopefully, I will get some answers:
1) Is there a way to keep the volumes of the analog channels and the digital channels closer together? Right now to hear analog channels (channels below 70) I have my receiver volume around 40, but when I switch to digital channels (channels about 100) I have to turn it down to around 25 or 30. Is this normal? And, if not, how do I cure it?
2) This is an odd problem. When I watch a History Channel On Demand program, for some peculiar reason, when the show starts it shuts off my receiver. All I have to do is turn the receiver back on to get sound, but why does it shut off? It hasn't done this with any other On Demand programs. When it shuts off, the pop is very startling and History On Demand is something my wife watches A LOT, so I would love to get this fixed.