The Discovery Channel Store offers Planet Earth: Pole to Pole, Mountains & Deep Ocean DVD for just $1.99, $19.96 off the list price. This DVD follows the sun as the earth rotates, showing scenery from all over the earth. It also looks at mountains and the animals that inhabit them, as well as the deepest parts of the ocean. Shipping is $2.95, or is free with orders of $59 or more using code FS59. There's no sales tax (except CA, KY, MD, MS, SC, TN, TX, VA).