My home theatre is all working fine until I purchase this Pioneer DVR 420. Nec Plasma, Motorola Cable Box, Zenith 318, Marantz 7300 ose. They are all connected via component cable thru the receiver (only 3 component connection)and all using digital sound. Now, where do I connect the DVR? Connection will be a S-vIDEO cable since all available component are all taken. Do I use VCR line or any other line in the receiver? I want to able to watch and record other channel and please provide in detail how to connect it. Thanks in advance.