I have an LG smart TV for the past couple of months. ..all going well. Last night when I turned on my TV all i saw was the blue and mostly green of all the cable channels that i tried. Now, at that time I was using my component cables...so I removed them and tried an HDMI connection and got the same result. It turned out that when I changed one HDMI port for another ( I have 4 Hdmi ports ) the channels were in full color again. Does this mean that particular HDMI port is no good anymore? I thought all this time it was my cable box defected.