I was an early adaptor of HDTV and my system, my TV and AV receiver, only have Component Video inputs for HD video. The system was working fine but I wanted to upgrade to a HD-DVR and since dealing with Comcast's customer service is painful I switched to WOW when they arrived in our neighborhood. The picture quality on many channels was terrible, color was blotchy, looked like a water color painting. When I plugged the cable box directly into the TV the picture looked good. After some troubleshooting, I thought there was a problem with the AV receiver, because when I bypassed the receiver using Fe to Fe RCA connectors the picture looked good. This should indicate the cables are good.
I check out the AV receiver and it appears to work correctly, I can plug in the DVD player (regular DVD NOT Blue Ray) into either component video input and picture looks good. It appears all components are working, just that they don't work together. The question is does any know why the WOW cable box would not work when the Comcast box worked just fine? Also any suggestions on how to remedy the situation. FYI the WOW cable box is a Scientific Atlantic 8300HDC and the Yamaha AV receiver is a RX-V2200.