Instruct: Classify Amazon reviews into positive or negative sentiment
Query: worked for one hour

I bought this product for my wife, installed it and watched it for one hour before the screen went dark. Looked pretty good for that hour so I'm hopeful to get a replacement but that brings up a whole different problem.Amazon didn't stand by their original price and I had to get a refund and try to reorder. Unfortunately, it is now $50 more and I have to wait for Amazon to get them in stock at my sale price or pay the extra $50.Pretty lame response by Amazon.