- Deep in the Heart
TV-G | Documentary/Nature
- Decoding the Driftless
TV-G | Science/Nature
- DragonFlyTV
TV-G | Science/Educational
- Deep Blue
TV-G | Science/Documentary
- The Desert Speaks
TV-G | Science/Travel
- Dog Whisperer
TV-G | Animals/Pets
- DIY Science Time
TV-G | Science/Educational
- Deadline to Disaster
TV-G | Science/Weather
- Doug's Geology Journal
TV-G | Science/Nature
- David Attenborough's Light on Earth
TV-G | Documentary/Nature
- Destination: Pluto Beyond the Flyby
NR | Science/Documentary
- Dancing With Sharks
NR | Documentary/Nature
- Discover India
NR | Documentary/Nature
- Dreamchaser
NR | Science
- Deep Time: Utmost Experience Beyond Time
NR | Science/Documentary
- David Attenborough's Ant Mountain
NR | Documentary/Nature
- Disasters in Space
NR | Science/Documentary
- Discovery Institute Center for Science and Culture
NR | Science/Religious
- Deadliest Catch: The Viking Returns
NR | Reality/Outdoors
- Deadly Science
NR | History/Science
- Disasters Engineered
NR | Science/Documentary
- The Daily Bite: Countdown to Shark Week
NR | Animals/Documentary
- DARPA Robotics Challenge
NR | Science/Documentary
- Dolphins Up Close with Bertie Gregory
NR | Documentary/Nature
- Dynamic Genomes
NR | Science
- De-Bugged
NR | Documentary/Nature
- David Attenborough's Great Barrier Reef
NR | Animals/Documentary
- Dirt
NR | Nature
- Dynamic Planet
NR | Travel/Nature
- Discovering Alabama
NR | Nature