- History's Greatest Mysteries
TV-PG | History/Documentary
- How the Universe Works
TV-PG | Science/Documentary
- How Do They Do It?
TV-PG | Science/Educational
- Hoarders
TV-PG | Reality/Health
- Hero of a Thousand Faces: Chef Richard Ingraham
TV-PG | Documentary/Special
- Her War, Her Story: World War II
TV-PG | Documentary/Special
- Help Desk
TV-PG | Documentary
- Hillbilly: The Real Story
TV-PG | Documentary/Special
- History Traveler
TV-PG | History/Travel
- Haunted Case Files
TV-PG | Documentary/Paranormal
- Hell's Battlefield
TV-PG | History/Documentary
- Hiding in Plain Sight: Youth Mental Illness
TV-PG | Documentary
- How Disney Built America
TV-PG | History/Documentary
- Hidden Hong Kong
TV-PG | Documentary/Special
- Harry and Meghan: What's Next?
TV-PG | Documentary/Special
- Have You Heard About Greg? A Journey Through Alzheimer's
TV-PG | Biography/Special
- Hidden Uganda
TV-PG | Documentary/Special
- History's Greatest Blunders
TV-PG | History/Documentary
- Hoarding: Buried Alive
TV-PG | Reality/Documentary
- Hangar 1: The UFO Files
TV-PG | Documentary/Paranormal
- Heart: Breaking the Band
TV-PG | Reality/Documentary
- Harrison Ford: Fortune Fight
TV-PG | Documentary/Special
- Hippos After Dark
TV-PG | Documentary/Nature
- How the Earth Was Made
TV-PG | Documentary/Special
- Hidden Malta
TV-PG | Travel/Documentary
- Hidden Alabama
TV-PG | Travel/Documentary
- How to Hire a Hitman
TV-PG | Documentary
- The Hunt for the Lost Squadron
TV-PG | History/Documentary
- History's Greatest of All Time With Peyton Manning
TV-PG | History/Documentary
- The Hill
TV-PG | Politics/Documentary
- Hidden Frontiers: Arabia
TV-PG | Travel/Documentary
- Hollywood in Utah
TV-PG | Documentary/Special
- History's Mysteries
TV-PG | History/Documentary
- Hitler's Secret Tunnels
TV-PG | History/Documentary
- Homegrown: The Counter-Terror Dilemma
TV-PG | Documentary/Special
- Hot Rods and Muscle Cars
TV-PG | Documentary/Auto
- Hotel Paranormal
TV-PG | Documentary/Paranormal
- How She Rolls
TV-PG | Documentary/Cooking
- Hulk Hogan: Fortune Fight
TV-PG | Documentary/Special
- The Humbler -- Danny Gatton
TV-PG | Documentary/Biography
- Have Guitar Will Travel World
TV-PG | Travel/Documentary
- Habla y habla - Part 2
TV-PG | Documentary/Special
- HI-VIS: Ten Years of Public Art
TV-PG | Documentary/Special
- Hidden Belize
TV-PG | Travel/Documentary
- Hidden Louisiana
TV-PG | Documentary/Special
- The Hunt
TV-PG | Documentary/Nature
- Hidden Louisiana
TV-PG | Travel/Documentary
- How the Nazis Lost the War
NR | History/Documentary
- High Life: Forest Canopy
NR | Documentary/Special
- Hero Dogs
NR | Animals/Documentary
- He Killed Them All? The Robert Durst Investigation
NR | Documentary/Crime
- The Hillside Strangler
NR | Documentary
- How Did They Fix That?
NR | Documentary
- Hitler's British Island
NR | Documentary
- Hitler's Games
NR | Documentary/Special
- Hidden UK
NR | Documentary/Nature
- A History of the World in Six Glasses
NR | History/Comedy
- Hello! NHK WORLD-JAPAN
NR | Documentary
- Habla Ya, Part II
NR | Comedy/Documentary
- Hollywood: The Great Stars
NR | Documentary/Special
- How To Have A Better Orgasm
NR | Health/Documentary
- Hombre vs. León
NR | Animals/Documentary
- The History of Food
NR | History/Miniseries
- Heart of the Matter
NR | Documentary
- History by the Numbers
NR | History/Documentary
- The History of English
NR | History/Documentary
- Hiroshima: Minute by Minute
NR | History/Documentary
- Heval
NR | Documentary/Special
- Historia de la vida
NR | Science/Animals
- Había una vez
NR | Documentary/Special
- High Alert
NR | Documentary/Crime
- Hit the Road
NR | Travel/Documentary
- Ho'omau: Joey's Journey
NR | Documentary
- HUZ: Drawn to Life
NR | Documentary/Special
- Hurricane the Anatomy
NR | Science/Weather
- Hollywood: No Sex, Please
NR | History/Documentary
- Hidden Australia
NR | Documentary/Nature
- House On Fire
NR | Reality/Documentary
- Historias de mujeres
NR | Documentary
- How Sex Changed the World
NR | Science/Documentary
- The Hidden Holocaust
NR | Documentary/Special
- Highclere: Un castillo fuera de serie
NR | Documentary
- Hell on Wheels
NR | Documentary/Rodeo
- Hazardous History With Henry Winkler
NR | Documentary
- Hunting History With Steven Rinella
NR | History/Documentary
- HI$TORY
NR | History/Documentary
- History: The Interesting Bits
NR | History/Documentary
- The Hidden Side of World War II
NR | History/Documentary
- Hirohito
NR | History/Documentary
- The Heiress and the Heist
NR | Documentary
- How We Got Over
NR | Documentary/Special
- History of the World in Two Hours
NR | Documentary/World history
- Henry V: Leader for the Ages
NR | History/Documentary
- Home Disaster Zone
NR | Comedy/Documentary
- Hunters of the Forest
NR | Animals/Documentary
- The Honey Trap: A True Story of Love, Lies and the FBI
NR | Documentary/Special
- How Machines Work
NR | Science/Documentary
- Himalayan Tsunami
NR | Documentary/Special
- How the Earth Made Man
NR | Science/Miniseries
- Healing the Harm on Buffalo's East Side
NR | Documentary/Special