Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Great series ... DVD quality is poor

Hogan's Heroes is one of those series which you just can't stop watching. There is always a great laugh.Unfortunately the DVD quality leaves a lot to be desired. DISCs 1 and 2 are mis-labeled. DISC 2 suffers from technical problems in the remastering. One of the worst tracks on DISC 2 was Happiness is a Warm Sergeant. The episode tended to jump back in a loop during certain parts, the sound would go in and out, and some other annoying glitchs.It is a shame that the quality control for this release is so poor.