I had a Directv system installed today with a Hughes HDVR2 Tivo. The HDVR2 has an optical audio out but I am unable to get sound through the optical audio. My receiver is a Denon 2802. Here is what I've tried: S-vid from HDVR2 straight to TV. Optical cable from HDVR2 to Optical-2 of the receiver. In the receiver set up I have assigned TV/DBS to optical-2. I thought that would be what I needed to do, but when I select TV/DBS on the reciver I am getting no sound. If I hookup with RCA audio jacks from the HDVR2 to the TV I do get sound through the TV. I'm missing something but I can't figure it out yet and I've come up empty on searches for hookup help. So any input on what I may be doing wrong would be appreciated.