- Dog Whisperer
TV-G | Animals/Pets
- The Desert Speaks
TV-G | Science/Travel
- DragonFlyTV
TV-G | Science/Educational
- Deep Blue
TV-G | Science/Documentary
- Deep in the Heart
TV-G | Documentary/Nature
- DIY Science Time
TV-G | Science/Educational
- Doug's Geology Journal
TV-G | Science/Nature
- David Attenborough's Light on Earth
TV-G | Documentary/Nature
- David Attenborough's Global Adventure
NR | Travel/Documentary
- Dawn to Dusk
NR | Animals/Documentary
- David Attenborough's Global Adventure: The Rise of Nature
NR | Documentary/Nature
- Deserts
NR | Documentary/Nature
- Dolphins Up Close with Bertie Gregory
NR | Documentary/Nature
- Deep Dive North America
NR | American history/Nature
- Dynamic Genomes
NR | Science
- David Attenborough's Global Adventure: Home Planet
NR | Documentary/Nature
- The Daily Bite: Countdown to Shark Week
NR | Animals/Documentary
- Doc
NR | Travel/Documentary
- DARPA Robotics Challenge
NR | Science/Documentary
- Deadly Science
NR | History/Science
- David Attenborough's Ant Mountain
NR | Documentary/Nature
- Discovery Institute Center for Science and Culture
NR | Science/Religious
- Destination: Jupiter
NR | Science/Documentary
- Deadliest Catch: The Viking Returns
NR | Reality/Outdoors
- Deep Dive Australia
NR | Documentary/Nature
- Dancing With Sharks
NR | Documentary/Nature
- Destination: Pluto
NR | Science/Documentary
- Destination: Pluto Beyond the Flyby
NR | Science/Documentary
- Dreamchaser
NR | Science
- Discover India
NR | Documentary/Nature
- Deep Time: Utmost Experience Beyond Time
NR | Science/Documentary
- Dynamic Planet
NR | Travel/Nature
- Depredadores
NR | Animals/Documentary
- David Attenborough's Great Barrier Reef
NR | Animals/Documentary
- De-Bugged
NR | Documentary/Nature
- Destruction Decoded
NR | Science/Documentary
- Discovering Alabama
NR | Nature
- The Dark Side of the Ocean
NR | Documentary/Nature
- Defenders of the Wild
NR | Documentary/Nature