- History's Greatest Mysteries
TV-PG | History/Documentary
- How Do They Do It?
TV-PG | Science/Educational
- How the Universe Works
TV-PG | Science/Documentary
- Hidden Beneath the Cities
TV-PG | Documentary
- History's Greatest Blunders
TV-PG | History/Documentary
- How the Earth Was Made
TV-PG | Documentary/Special
- Hangar 1: The UFO Files
TV-PG | Documentary/Paranormal
- Heart: Breaking the Band
TV-PG | Reality/Documentary
- Hoarding: Buried Alive
TV-PG | Reality/Documentary
- Harrison Ford: Fortune Fight
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
- Hitler's Olympics
TV-PG | History/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
- Help Desk
TV-PG | Documentary
- 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
- Hot Wheels: 50th Anniversary Special
TV-PG | Documentary/Special
- Hollywood Idols
TV-PG | Biography
- Hope in the Struggle: The Josie Johnson Story
TV-PG | Documentary/Special
- How To Train Your Killer
TV-PG | Documentary/Nature
- Human Footprint
TV-PG | Documentary
- Hurricane Man
TV-PG | Weather/Documentary
- High Hitler
TV-PG | History/Documentary
- Hoteles increíbles
TV-PG | Travel/Documentary
- Hoarders
TV-PG | Reality/Health
- How the Earth Was Made
TV-PG | History/Science
- Habla Ya, Part I
TV-PG | Comedy/Documentary
- Haunted Hospitals
TV-PG | Documentary/Paranormal
- Hope in the Water
TV-PG | Documentary/Nature
- The Haunted
TV-PG | Documentary/Paranormal
- Highclere: Behind the Scenes
TV-PG | Documentary
- Hip Hop Treasures
TV-PG | Reality/Collectibles
- Horatio's Drive: America's First Road Trip
TV-PG | Documentary/Special
- House On Fire
NR | Reality/Documentary
- Historias de mujeres
NR | Documentary
- How Sex Changed the World
NR | Science/Documentary
- How World War II Changed America
NR | Documentary/Special
- Highclere: Un castillo fuera de serie
NR | Documentary
- Higgins Ridge
NR | Documentary/Special
- The Hidden Side of World War II
NR | History/Documentary
- HI$TORY
NR | History/Documentary
- History: The Interesting Bits
NR | History/Documentary
- Harry and Meghan: The Great Divide
NR | Documentary/Special
- The Heiress and the Heist
NR | Documentary
- Historia del pueblo mexicano
NR | History/Documentary
- Henry V: Leader for the Ages
NR | History/Documentary
- Hunters of the Forest
NR | Animals/Documentary
- Home Disaster Zone
NR | Comedy/Documentary
- How the Nazis Lost the War
NR | History/Documentary
- House Democratic Leaders Hold Briefing on Trump's Agenda
NR | Documentary/Special
- Hunt for the Missing: Chicago
NR | Documentary/Crime
- High Life: Forest Canopy
NR | Documentary/Special
- Hero Dogs
NR | Animals/Documentary
- Habla Ya, Part II
NR | Comedy/Documentary
- Historic Places with Elsa Sevilla: California History
NR | History/Documentary
- Hidden UK
NR | Documentary/Nature
- How Did They Fix That?
NR | Documentary
- He Killed Them All? The Robert Durst Investigation
NR | Documentary/Crime
- The Hillside Strangler
NR | Documentary
- How to Build a City
NR | History/Documentary
- A History of the World in Six Glasses
NR | History/Comedy
- Heart of the Matter
NR | Documentary
- How L.A. Became A Soccer City
NR | Documentary/Special
- How To Have A Better Orgasm
NR | Health/Documentary
- Hollywood: The Great Stars
NR | Documentary/Special
- The History of Food
NR | History/Miniseries
- History by the Numbers
NR | History/Documentary
- Hitler's Gold
NR | History/Documentary
- The History of English
NR | History/Documentary
- Hoops Africa: Ubuntu Matters
NR | Documentary/Basketball
- Heval
NR | Documentary/Special
- Había una vez
NR | Documentary/Special
- Herb Alpert Is…
NR | Documentary/Special
- Hollywood: No Sex, Please
NR | History/Documentary
- HGTV Urban Oasis 2020
NR | Documentary/Special
- Historias por Contar
NR | News/Community
- Humans Vs. Everything
NR | Comedy/Documentary
- Harlem Globetrotters: America's Greatest Show
NR | Documentary/Special
- Hunted by My Husband: The Untold Story of the DC Sniper
NR | Documentary/Crime
- Heavy Metal Task Force
NR | Documentary/Technology
- History of the Yankees
NR | Baseball/Documentary
- The Hunt for the Slave Ship Guerrero
NR | History/Documentary
- How I Left the Opus Dei
NR | Documentary/Docudrama
- The Hunt for Gaddafi's Billions
NR | Miniseries/Documentary
- High-Tech Trucks
NR | Documentary/Technology
- Houses of Horror: Secrets of College Greek Life
NR | Documentary
- The Hustle of @617MikeBiv
NR | Documentary/Special