I have my replay connected to my 47 in Panasonic Widescreen HDTV Projection set. I do not have a HDTV set top box. The degradation in picture quality is terrible! I have it connected with Monster cables and S video and still poor picture. Any suggestions on connections, I have a Motorolla Digital Cable Box as well. If I upgrade to the 4500 series would there be an improvement in the picture?