I have a Samsung HLP5063W... 2 years old (out of Warrenty - bought at Costco). About 1 week ago started to experience vertical lines on the screen after watching the TV for about about an hour. It does this on the Sat and DVD so it is the TV. It looks like a bunch of black lines throughout screen... almost like there is a poor connection somewhere ( I checked there is not). It goes away but comes back after a few minutes. The colour on the screen seems fine. I called Samsung.... they had nothing to offer..."bring it to a service place".... I ended up unplugging the TV for a day and it worked fine for like 4 days after but the problem re-surfaced.
I'm pretty well pissed off at this point... I paid almost 3G's for this TV.