Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very dissatisfied... avoid this product.

Bought the unit in September, 2006. First unit had no UHF and returned it for exchange; second unit would not turn on and returned it for exchange; third unit worked mostly until January 9, 2007... all we get is a purple screen.Written warranty of 1 year parts and labor so far is useless after 1 week of waiting after the first call... they are still trying to locate a carry-in service center for our area of Indiana.Although the picture quality was good, the sound is quite poor... someone else mentioned this in another review.The other failing is when we playback recorded VCR tapes to this monitor, the picture blacks out regularly... probably due to the monitor not showing a signal if there is *any* hiccup in the signal from the VCR... we know it is the problem with this TV because the same VCR player plays fine on another TV.