Good deals abound at the National Geographic Store this summer! If you're spending time in front of the boob tube, choose to watch the amazing programming offered by National Geographic. For a limited time, you can pick up three of their DVD Favorites for just $25. Shop for titles like Sea Monsters: A Prehistoric Adventure, Mystery of the Fallen Giants, The Hunt for Lincoln's Assassin, and more. Plus, when you spend over $75 on anything on their site, your order will ship for free. Both offers end 07/31/2011.