Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Started out great, then black screen and died one week later

Did all my research, checked it out at the store - seemed to be the best combo DVD/HDTV. When we got home, it worked great - for one week. Then, we started getting a black screen for 4-8 hours at a time. Even when the DVD was on, we could hear sounds, but still no picture. Eventually, we returned it for our money back.