So after purchasing a new samsung tv and hooking up the scientific atlanta comcast cable box through the first HDMI port, I noticed some green flashing pixels after a few weeks. Those green flashing pixels have now turned into what you see on picture #1. The strange thing is, if you switch the port to the third HDMI port you get whats on picture #2. My xbox 360 works fine hooked up into all 4 port using HDMI. The cable box works fine on HDMI ports #2 & #4. HDMI #1 and #3 are the ones that seem messed up. I have many wires in back of the tv and if you move them, the lines do move on the tv making me think its interference.
Im so confused, I have tried 3 different HDMI cables - still the same result. Im going to try a new cable box but I have a feeling it is going to give me the same results. I have read many weird things about HDMI, Im just not sure wether its the TV or not.