Hi, if I want to use rgb scart from my freeview PVR to my LCD TV do I need an RGB only scart cable or can I use a regular scart cable? If I can use a regular scart cable is the performance gain worth the cost involved from scart to rgb only scart - they seem to be a fair bit more expensive. I'll be using optical out from the pvr to my yahama amp for sound. Thanks. Nick.