Terrible service

I purchased a Samsung tv from House and home and not long after that the tv gave me problems when I went to report it and asked for the tv to be changed for a new one I kept getting the answer that it had to be sent in for repairs.Im sitting with a TV that has been giving me the same problem and has gone in for repairs for the third time.The sales lady didnt bother about the problematic tv I bought and even the manager told me theres nothing that can be done except send it in for repairs.Now the TV is in for repairs under the extended warranty that I had paid for.My concern is we pay for these things it's not been given to us for free and when you have problems the very same people who wanted this business and sold you the great deal say they can't help you.I am extremely frustrated as this problem has been going on for years now and I got told the same answer that I did couple months after I purchased the tv.So basically when the tv returns with the same problem I will have to pay someone to check it out because the shop didnt want to solve this problem from the start.