Onsite TV & Applaince Repair

We called him, he came out, and he worked on the TV, turned it back on and it was working. A month later, the TV went out again. Based on his warranty, he came back, worked on it, and drove away. As soon as he drove away, it went out again. We called him back, and this time he came and picked up the TV to fix it at a shop. I have yet to have a TV since. He was supposed to find a replacement for me. Four months later, I went ahead and bought another television. As of now, all I want is my money back. He was trying to sell me an $800 TV for $400--I can buy another TV that will work just fine for $300. Its basically came to a stale mate--I either want my money back, or a 27'' or 32'' used LCD TV that is comparable to mine that he has yet to return.