In need of HT Experts. I finally received my TX-SR700 yesterday and I'm wondering what advantage is gained by running component video for DVD, S-Video for cable & VCR through the receiver. Right now I have everything running directly to my Mits-55807. Will there be any improvement or degradation in the video quality? As I see it I either way, I will still have to select the input source on the TV & receiver. Not to mention buying 3 additional sets of expensive interconnects.