Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Doesn't work

I bought 4 of these and the first one I used did not work with 1080p. The lower non hd channels worked fine but the upper hd channels produced no signal through this cable. Replaced it with one from my cable company and the channels worked fine. I guess the price was to good to be true. I will test the other three and post an update.