So, I had a bit of a read of this thread yesterday as I'm quite interested in consumer issues, ... it's a 4 year old TV (purchased from Amazon you'll be pleased to hear) and it's not unlikely that the backlight has just given up the ghost. However, being as I said, a rational man, .. I therefore beseech the OP to remove the gypsy/voodoo/black magic curse that he has inadvertently (or otherwise) placed on my Korean electrical goods. Have a heart!
In other news does anybody know whether replacing a backlight is economically viable?