Just started happening about a week ago. Watching an HD channel with STB connected via DVI out with an adapter to HDMI into Panny SD50LC14. When I change to a SD channel all the Red and yellow is gone. Everything turns blue. People faces are blue, the words and icons in the menu changes from yellow to blue. The button indicator for the red button is blue. Everything in the guide that should be yellow or red is now blue. So I use the back button to the HD channel and then back again to the SD channel and within 3 cycles of doing that everything is back to normal. I bet nobody else has THIS problem.