Products go wrong, it happens. It's how they deal with it afterwards that matters really. In Samsung's case, this has always been excellent for me - I bought a new Samsung TV last year, after about 2 months of use, the TV would randomly stop accepting signals from the remote or front buttons, then after a few minutes would shut down, then be fine when turned back on.
Yaa boo sucks to samsung you might say, but - I called samsung about mid afternoon, reported the fault with them - 15 minutes later I got a call back from the local samsung authorised repair centre, who arranged to come to me THE NEXT MORNING and promptly replaced both the of the TV's boards (power and control). The guy was in my home for 15 minutes tops, less than 18 hours after calling samsung, and i've had a perfectly working TV ever since.
Can't fault service like that.