Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not very good

I purchased the antenna for a digital TV recently purchased. I live in the immediate city limits and that should have been adequate. I scanned the stations and had an increase of those found. The trouble is that the antenna which is close to a window and as high as possible loses those signals quickly. I scanned the channels prior to our six oclock news and watch a local station on CBS, then at 6:30 we switch to abc, which has in the half hour lost enough of the signal that it is unwatchable.