Hello, I am looking for advice on hooking up a Denon AVR 5600 and a Sharp 50LB261U. I have hooked up a Direct TV box, Playstation and DVD player to the Sharp through the HDMI 1,2 and 3 on the TV. I am wanting the option of running the sound from the TV and components through the Denon AV. I was hoping to run the Audio out of the Sharp through the Digital Audio Output into the Denon. At the current time I have the optical cable connected from the Sharp Audio Output to the Optical 3 on the Denon. I have tried connecting a RCA cable from the TV/DBS jack on the Denon to the Y/Video jack on the Sharp to be able to use the on screen set up for the 5.1 speakers. I am not getting the onscreen option or any sound through the AV Receiver. Please give advice on my hook up options and help with what I am doing wrong. Thanks