I have a panasonic satellite reciever, and I notice when I was goint through the menu that I can switch between PAL and RGB. But I don´t see a difference in the picture. What does an RGB signal look like when it´s connected to a scart input that´s not RGB conmatible? I have a widescreen TV, should I set the reciever to widescreen or normal, how does this affect channels that are normal and widescreen like sky premier ws???