Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Amazing series. Not the best edition, though.

While first four DVDs in this edition are just amazing, the fifth, bonus disc contains four lame features (especially in comparison to the brilliant Blue Planet series) - some dated BBC documentaries they are, I believe. I would recommend earlier 4 disc set instead:The Blue Planet - Seas of Life Collector's Set (Parts 1-4)