This incredible 11-part Planet Earth - The Complete BBC Series will make you amazed with he most astonishing sights and sounds you'll ever experience from the comforts of your home. All episodes are 50 minutes and you will want to finish all without any break. This is undoubtedly one of the best high-quality documentary films about the nature and wildlife habitat (mountains, caves, wild deserts, deep seas, seasonal forests, etc.) The entire planet has been magnificently represented for each continent. One of my all time favorites.
Amazon has the best prices for Planet Earth DVDs. BBC complete series are sold in 3 formats, 5 DVD Discs Set, Blu-ray and HD DVD for the maximum joy.
Discovery Channel Store also sells The Planet Earth BBC Collection with great discount.