I have this unit hooked up to satellite via s-video & to an older analog tv via composite cable. When watching the television input assigned to the dvd recorder, I get a faifly sharp picture but it has the "screen door" effect. Is there some setting I can change. It is set to 480i. Since the tv is older, I only have limited inputs. I originally ran the dvd recorder into an input already in use by using a "Y" plug. This caused the sound to be very slight & the picture to be darker. Any ideas on the cause of the "screen door" image on the tv?