TV shows about science, phenomena, nature, and history

I enjoy spending time when not gaming, playing guitar, or listening to music; I watch TV shows, but about science, phenomena, nature, and history. I watch shows on Science Channel, Discovery Channel, History Channel, National Geographic Channel, etc. I am from the United States and the shows I watch are the U.S. versions and are often aired on different channels narrated by different people.


What are some good shows about the four subjects I've mentioned above, and what are your favorite shows?