- Cyberchase
TV-Y | Science/Educational
- Craig Charles: UFO Conspiracies
NR | Science/Documentary
- The Columbia Coast
NR | Documentary/Nature
- Carbon: The Unauthorized Biography
NR | Science/Documentary
- Criaturas poderosas
NR | Science/Animals
- China's Secret Monkey Kingdom
NR | Documentary/Nature
- The Curious Mind
NR | Science/Documentary
- A Cat's-Eye View of Japan
NR | History/Animals
- Chasing the Giant Croc
NR | Documentary/Nature
- Closer to Truth's Eastern Traditions and the Big Questions
NR | Science
- Caught! Sharks Strike Back
NR | Animals/Documentary
- Código Secreto
NR | Nature
- Cactus hotel
NR | Documentary/Nature
- Chasing Ocean Giants
NR | Animals/Documentary
- China's Science Revolution
NR | Science/Documentary
- Casey's Wild Backyard
NR | Animals/Documentary
- Changing Ocean Asia
NR | Science/Weather
- Canary Islands: Volcanic Reefs
NR | Nature/Special
- Contraption Masters
NR | Science/Technology
- Cosmic Collisions
NR | Science
- Contact: Alien Mysteries
NR | Science/Documentary
- Climate Impact Asia
NR | Science/Documentary
- Chinese Story
NR | News/Science
- Carolina Outdoor Journal
NR | Outdoors/Nature
- Connections with James Burke
NR | History/Science
- A ciencia cierta
NR | Science
- A Curious World
NR | Science
- Confessions: Animal Hoarding
NR | Animals/Pets