Instruct: Classify Amazon reviews into positive or negative sentiment
Query: THOROUGH AND INFORMED

This documentary spectacular succeeds marvelously within the limitations of the PBS program. Inevitably, segments in the history of musical theater have been streamlined and/or eliminated in order to work within less than six hours. Any attempt on Mr. Kantor's part to "cover" every person who contributed to this great form would have been devastatingly disappointing as a complete, final product. His choice to probe certain stands and select musical issues succeeds in illuminating the whole, especially the segment about the creation of new work. I highly recommend this product as well as the companion book by Laurence Maslon.