I am trying to record a show from my Directv HD20 to my Toshiba TX60 using RCA cables. Great Picture, no sound. At first I thought it was because I recorded the show in 5.1 on the HD20, so I tried to record a non 5.1 show, same thing. I changed audio cables, still no sound. What am I missing?

Either the wrong configuration on the HD20 or the cables are not connected right.

thanks. turned out audio cables were defective. works fine after change.