Use code EML2009 to take $5 off $25 or more on sale DVDs at the Discovery Channel Store. This sale include gift sets, season collections and special packages for some of their most popular shows across all of the Discovery networks (the Discovery channels, TLC and Animal Planet). Check out Shark Week: The Great Bites Collection, originally $24.98 and now $19.99, the Planet Earth DVD & Book Gift Set drops from $119.90 to $60.21 to $55.21 and Jon & Kate Plus 8 Season 1-4 Collection (pictured) lowers from $129.80 to $103.84 to $98.84. Shipping is from $5.99 and there's no sales tax (except CA, KY, MD, MS, SC, TN, TX, VA). Spend $75 and your order ships for free.