- Is Amelia Earhart Alive: A Mysteries at the Museum Special
TV-PG | History/Travel
- Into the Wild Frontier
TV-PG | History/American history
- Investigating History
TV-PG | History/Documentary
- The Irish in America
TV-PG | History/Documentary
- Inside the Tower of London
TV-PG | History/Reality
- Inside Secret Societies
TV-PG | History/Documentary
- Inside the Soviet Military Machine
TV-PG | History/Documentary
- Ice Age America
NR | History/Documentary
- Identidad
NR | History/Art
- Israel Unfiltered
NR | History/War
- Inside Hitler's Killing Machine
NR | History
- Inside North Korea
NR | History/Documentary
- Impossible Escapes: Civil War
NR | History/Documentary
- Inquisition
NR | History/Educational
- Imperio perdido de la Isla de Pascua
NR | History/Documentary
- Inside the CIA: Secrets & Spies
NR | History/Documentary
- The Inquisition
NR | History/Religious
- Il mix delle 23
NR | History/Biography
- In Pursuit of Philadelphia History
NR | History/Special
- Instruments of Death
NR | History/Documentary