Model PN50A450. I bought my TV in May of 2008. I then Had it repaired in 09 due to screen discoloring issues. Today while watching it a thin black horizontal line has appeared. It shows up on all inputs and runs across the top of the screen about 3" from the top of the screen. It looks like a row of inactive pixels. TV has been sitting on a stand for nearly it's entire life and gets used everyday for several hours. Obviously I am 3 years out of warranty, but 4.5 years seems like a short life for a $1200 TV..
I have read others have had this issue. Is there any fix? or should I be shopping for a non Samsung TV?