- History's Greatest Mysteries
TV-PG | History/Documentary
- How the Universe Works
TV-PG | Science/Documentary
- Hoarders
TV-PG | Reality/Health
- How Do They Do It?
TV-PG | Science/Educational
- Her Voice Carries
TV-PG | Documentary/Special
- Hidden Maine
TV-PG | Travel/Documentary
- Hollywood Priest: The Story of Fr. "Bud" Kieser
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
- Hiding in Plain Sight: Youth Mental Illness
TV-PG | Documentary
- Hell's Battlefield
TV-PG | History/Documentary
- Hidden Hong Kong
TV-PG | Documentary/Special
- Hoarding: Buried Alive - 10 Biggest Hoards
TV-PG | Reality/Documentary
- Harry and Meghan: What's Next?
TV-PG | Documentary/Special
- Hotel Paranormal
TV-PG | Documentary/Paranormal
- Hostile Planet
TV-PG | Documentary/Nature
- Habla y habla - Part 2
TV-PG | Documentary/Special
- The Humbler -- Danny Gatton
TV-PG | Documentary/Biography
- How We Grieve
TV-PG | Documentary
- Have Guitar Will Travel World
TV-PG | Travel/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
- How She Rolls
TV-PG | Documentary/Cooking
- Hemingway
TV-PG | Documentary/Biography
- Hulk Hogan: Fortune Fight
TV-PG | Documentary/Special
- Hidden Belize
TV-PG | Travel/Documentary
- How the Earth Made Man
TV-PG | Science/Miniseries
- Hidden Louisiana
TV-PG | Documentary/Special
- The Hunt
TV-PG | Documentary/Nature
- Hitler's Secret Bomb
TV-PG | History/Documentary
- How the Victorians Built Britain
TV-PG | History/Documentary
- Holy Grail in America
TV-PG | History/Religious
- Heart of the Osa
TV-PG | Documentary/Nature
- Hamilton: Building America
TV-PG | History/Documentary
- Hunt for the Giant Squid
TV-PG | Documentary/Nature
- Hidden Beneath the Cities
TV-PG | Documentary
- 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
- How the Earth Was Made
TV-PG | Documentary/Special
- Hunting History With Steven Rinella
TV-PG | History/Documentary
- Hidden Malta
TV-PG | Travel/Documentary
- Hidden Alabama
TV-PG | Travel/Documentary
- How the Nazis Lost the War
NR | History/Documentary
- Hero Dogs
NR | Animals/Documentary
- How Did They Fix That?
NR | Documentary
- The Hillside Strangler
NR | Documentary
- Hunt for the Missing: Chicago
NR | Documentary/Crime
- High Life: Forest Canopy
NR | Documentary/Special
- Habla Ya, Part II
NR | Comedy/Documentary
- Historic Places with Elsa Sevilla: California History
NR | History/Documentary
- A History of the World in Six Glasses
NR | History/Comedy
- Heart of the Matter
NR | Documentary
- How To Have A Better Orgasm
NR | Health/Documentary
- Hebrew Israelites Debunked
NR | Documentary/Special
- Hollywood: The Great Stars
NR | Documentary/Special
- The History of English
NR | History/Documentary
- Hummingbirds Jewelled Messengers
NR | Documentary/Special
- Había una vez
NR | Documentary/Special
- History Storytellers: Gettysburg
NR | Documentary/Special
- Herb Alpert Is…
NR | Documentary/Special
- High Alert
NR | Documentary/Crime
- The Honey Trap: A True Story of Love, Lies and the FBI
NR | Documentary/Special
- Himalayan Tsunami
NR | Documentary/Special
- Hollywood Signs
NR | Documentary/Special
- Haunted: Indiana State Sanatorium
NR | Documentary/Special
- How Machines Work
NR | Science/Documentary
- Healing the Harm on Buffalo's East Side
NR | Documentary/Special
- Habla Mas
NR | Documentary/Special
- How to Start a Small Business
NR | Comedy/Documentary
- Highway to the Arctic: Canada's Ice Roads
NR | Documentary/Special
- How to Love A Sista
NR | Documentary/Special
- Haiti On Fire
NR | Documentary/Special
- Heroines
NR | Documentary
- How to Train a Great White
NR | Animals/Documentary
- The Heartbeat of Life
NR | Documentary/Special
- Horizon
NR | Science/Documentary
- Henry David Thoreau
NR | Documentary
- Hoteles con alma
NR | Travel/Documentary
- Hot Roads: The World's Most Dangerous Roads
NR | Documentary
- Historias de mujeres
NR | Documentary
- How World War II Changed America
NR | Documentary/Special
- Howie Rose: Put It in The Books
NR | Baseball/Documentary
- The Hembree House
NR | Documentary/Paranormal
- Hitler's Secret Sex Life
NR | History/Documentary
- House On Fire
NR | Reality/Documentary
- Havencrest Castle: A Very Special Place
NR | Documentary/Special
- How Sex Changed the World
NR | Science/Documentary
- Highclere: Un castillo fuera de serie
NR | Documentary
- Higgins Ridge
NR | Documentary/Special
- Hell on Wheels
NR | Documentary/Rodeo
- The Hidden Side of World War II
NR | History/Documentary
- HI$TORY
NR | History/Documentary
- The Huddle
NR | Documentary
- House Calls
NR | Documentary/Special
- History: The Interesting Bits
NR | History/Documentary
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