panasonic 50dl54,when i try to hookup my dvd to the rear of the tv,i follow the manual and hook rca plugs to the pyb jacks on the back of the dvd to the input pyb jacks on the back of the tv.i make sure that each plug matches the same color on each.green to green plug ect.the result is no picture but colored waves going accross the screen.the only way i can make it work is a single video out on the back of the dvd to single video in on the side of the tv.help.