Your basic travelogue fare, Exotic Saltwater Aquarium HD DVD, Fireplace HD DVD, AntarcticaDreaming, Visions of Sea: Explorations, Serenity: Southern Seas, HD Window: Hawaii, HD Window: The Great Southwest provide what we're sure are crystal clear looks at various landscapes if you're not already bored to death by them on INHD2 into that type of thing.
Sitting in Antarctica 100 years on, dreaming of Mars, I would update Scott's advice by factoring into his equation, the impact (unbeknown to him) of humans on Earth over the past century.