After owning my HLS 6187 for about 50 days I just noticed that through HDMI, if the signal being fed is a 1080i or 1080P source, I get a real bad color shift that looks very yellowish, darker and sometimes a little pixelated too. I have swapped 3 different cables and tried 5 different sources, 4 of which I confirmed on friends tvs do not enduce this color shift problem. Through component, this does not happen and all is good. Also 720P through HDMI appears to be fine as well.
Another way to describe what my TV looks like with a 1080 source through HDMI: When you first power up the TV, it slowly comes on and the picture starts to get brighter and brighter till it gets to a point where its almost at full brightness and has a yellow haze. It hangs on that spot for about 6-7 seconds then bam, something kicks in and the TV is at full brightness and the colors look right. Just prior to that final stage of whatever kicks in there is how my TV looks with the 1080 HDMI source.
Any ideas as to what this could be? I called Samsung for warranty service but the tech they sent over ( private TV repair shop ) said the TV was fine and blamed the cable and or, the cable box even after I told him that I tried 3 different HDMI cables and confirmed that these cables, DVD players, PS3 etc etc on my friends Samsung TV are fine. After I got upset with him he changed his story and said he would look into it.
I reported back to Samsung and they promised to look into it, fix my problem and to fix it as quickly as possible or replace the TV. Their customer service has actually been great so far and they really make me feel like they are committed to fixing my issues and making me happy.
I will keep you guys updated as to what happens.