Instruct: Classify a review into positive or negative sentiment.
Query: Beware: Cheap power supply on all Samsung HDTV tuners

Before anyone spends a lot on what is quickly becoming a vintage product...I've had 3 Samsung HDTV tuners (2 of this model and 1 of a previous model) and Samsung must put some crappy power supplies in them because that's what has always died.Slow to change channels, slow to power up, etc. etc. Powering it down when not using it makes no difference, they're just cheapy built. 2 years of usage in them tops.