Supply the transaction numbers from your calls so they can see what's up.
There is a BAD CAPS issue with this and other makers which is worth noting. Samsung does some one time repairs for free on some models but your post didn't tell if you called in.
just about two years ago, i purchased 3 samsung tvs, 2 32" LCD's and a 40" LCD.. since that time ALL THREE tvs have broke, the 2 32" tvs power supplies both have went bad ( plugged into surge protectors ) and the 40" decided to just have a pink screen one day.. now how can such a big name in the industry sell such ****** products, and do nothing about it and also do nothing to keep the customer base happy??