- 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
- Help Desk
TV-PG | Documentary
- Her War, Her Story: World War II
TV-PG | Documentary/Special
- Hillbilly: The Real Story
TV-PG | Documentary/Special
- Hiding in Plain Sight: Youth Mental Illness
TV-PG | Documentary
- History Traveler
TV-PG | History/Travel
- Hell's Battlefield
TV-PG | History/Documentary
- Haunted Case Files
TV-PG | Documentary/Paranormal
- 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
- Hitler's Secret Tunnels
TV-PG | History/Documentary
- Hot Rods and Muscle Cars
TV-PG | Documentary/Auto
- Homegrown: The Counter-Terror Dilemma
TV-PG | Documentary/Special
- Hotel Paranormal
TV-PG | Documentary/Paranormal
- Heart of the Osa & Sandcastle: The Secret Life of Potter Wasps
TV-PG | Documentary/Nature
- Hulk Hogan: Fortune Fight
TV-PG | Documentary/Special
- The Humbler -- Danny Gatton
TV-PG | Documentary/Biography
- Hostile Planet
TV-PG | Documentary/Nature
- Hidden Belize
TV-PG | Travel/Documentary
- Hidden Louisiana
TV-PG | Documentary/Special
- Habla y habla - Part 2
TV-PG | Documentary/Special
- Have Guitar Will Travel World
TV-PG | Travel/Documentary
- Hitler's Secret Bomb
TV-PG | History/Documentary
- The Hunt
TV-PG | Documentary/Nature
- Heart of the Osa & Kalu: Growing up Wild
TV-PG | Documentary/Nature
- Hamilton: Building America
TV-PG | History/Documentary
- Holy Grail in America
TV-PG | History/Religious
- Heart of the Osa
TV-PG | Documentary/Nature
- Hunting Hitler
TV-PG | History/Documentary
- Hunting Atlantis
TV-PG | History/Reality
- Hunt for the Giant Squid
TV-PG | Documentary/Nature
- The Hunt for John Wilkes Booth
TV-PG | History/Documentary
- Hidden Beneath the Cities
TV-PG | Documentary
- History's Greatest Blunders
TV-PG | History/Documentary
- How the Nazis Lost the War
NR | History/Documentary
- High Life: Forest Canopy
NR | Documentary/Special
- Hunt for the Missing: Chicago
NR | Documentary/Crime
- Hero Dogs
NR | Animals/Documentary
- Historic Places with Elsa Sevilla: California History
NR | History/Documentary
- The Hillside Strangler
NR | Documentary
- Hidden UK
NR | Documentary/Nature
- He Killed Them All? The Robert Durst Investigation
NR | Documentary/Crime
- Hidden Histories
NR | History/Documentary
- How to Build a City
NR | History/Documentary
- Hitler's British Island
NR | Documentary
- A History of the World in Six Glasses
NR | History/Comedy
- Habla Ya, Part II
NR | Comedy/Documentary
- How Did They Fix That?
NR | Documentary
- Heart of the Matter
NR | Documentary
- Hiroshima: Minute by Minute
NR | History/Documentary
- How To Have A Better Orgasm
NR | Health/Documentary
- The History of Food
NR | History/Miniseries
- Hollywood: The Great Stars
NR | Documentary/Special
- History by the Numbers
NR | History/Documentary
- The History of English
NR | History/Documentary
- Heval
NR | Documentary/Special
- Había una vez
NR | Documentary/Special
- Hoops Africa: Ubuntu Matters
NR | Documentary/Basketball
- Ho'omau: Joey's Journey
NR | Documentary
- Hollywood: No Sex, Please
NR | History/Documentary
- Hit the Road
NR | Travel/Documentary
- The Honey Trap: A True Story of Love, Lies and the FBI
NR | Documentary/Special
- The Hudsonville-Standale Tornado: 70 Years Later
NR | Documentary/Special
- Himalayan Tsunami
NR | Documentary/Special
- How the Earth Made Man
NR | Science/Miniseries
- Habla Mas
NR | Documentary/Special
- Hitchcock
NR | Biography/Special
- How Machines Work
NR | Science/Documentary
- Healing the Harm on Buffalo's East Side
NR | Documentary/Special
- The Heartbeat of Life
NR | Documentary/Special
- Heroines
NR | Documentary
- History's Greatest Warbirds
NR | Documentary/Aviation
- Health Diary: Women's Health Special
NR | Health/Documentary
- History's X-Files
NR | Documentary
- How to Start a Small Business
NR | Comedy/Documentary
- Horizon
NR | Science/Documentary
- History Uncovered
NR | History/Documentary
- Highway to the Arctic: Canada's Ice Roads
NR | Documentary/Special
- Haiti On Fire
NR | Documentary/Special
- Henry David Thoreau
NR | Documentary
- Heartbeat of MY Soul
NR | Documentary/Special
- Hot Roads: The World's Most Dangerous Roads
NR | Documentary
- Hometown Stories
NR | Community/Documentary
- History Vault: The President Has Been Shot
NR | History/Documentary
- Hercules and the Conquest of Cinema
NR | Documentary/Special
- Held In Minnesota: Untold Wwii Pow Stories
NR | History/Documentary
- History Remembers George H.W. Bush
NR | History/Biography
- How America Works
NR | Documentary
- Harold Shipman
NR | Documentary/Biography
- Hupa Fire: Traditional and Cultural Fire Management
NR | Documentary
- Hiseerie
NR | Documentary/Paranormal
- Hidden Australia
NR | Documentary/Nature
- House On Fire
NR | Reality/Documentary
- Historias de mujeres
NR | Documentary
- How Sex Changed the World
NR | Science/Documentary
- Havencrest Castle: A Very Special Place
NR | Documentary/Special