At first..the tv would fire up and work.fine for 2 hours and then two skinny colored lines would appear and slowly develop into the black bar.damn, i am in the market for a new tv myself and i should say, that just plain sucks. not to further disappoint you, but my wife's brother-in-laws (2 of them) have the same black line on their samsung 42" led tvs and they simply had no choice but to replace....
did the black line just suddenly show up or did it start like a thin line first that later got thicker as time went by?
i am a "techie phobe" in always thinking that the gadgets nowadays are getting more flimsy. and so far, i am more convinced that i am right....
Now it's on all the time.