Showing top 2 upcoming show times. Show times are sorted in increasing order of start time.

1. Thu 11:00 AM, 3 Apr 2025 on Nat Geo HD channel

   Sunken Weapons of War: An underwater look at the weapon that destroyed one of the Civil War's greatest ships, as well as the technology that changed military warfare (1 of 3). All Ages.

2. Fri 11:00 AM, 4 Apr 2025 on Nat Geo HD channel

   America's Lost Treasures: Experts explore how the history of America is hidden beneath its harbours, shorelines and streets (2 of 3). All Ages.

Showing top 10 upcoming show times. Show times are sorted in increasing order of start time.

1. Wed 11:00 AM, 2 Apr 2025 on Nat Geo HD channel

   Undersea Empires: Experts find a seafloor awash with superpowers' secrets, including the Egyptian Pharaoh who built 15 unused forts and Britain and Germany's deadly arms race. RATING: AA

2. Tue 11:00 AM, 1 Apr 2025 on Nat Geo HD channel

   Deep Water Disasters: Experts take a trip to the seafloor as they explore Earth's explosive past. Could the events that wiped out the dinosaurs be set to happen again? RATING: AA

3. Mon 11:00 AM, 31 Mar 2025 on Nat Geo HD channel

   America's Sunken Shores: Check out the secrets of America's sea floor, including the deadly forces surrounding Alcatraz and the truth about the first shot fired at Pearl Harbor. RATING: AA

4. Fri 12:00 PM, 28 Mar 2025 on Nat Geo HD channel

   Sabotage on the High Seas: Special underwater technology reveals how silent and unseen tactics have sent countless ships to the seafloor. RATING: AA

5. Thu 12:00 PM, 27 Mar 2025 on Nat Geo HD channel

   Stormy Seas: Experts drain the ocean to prove how Mother Nature sunk a huge haul of Spanish treasure as well as the mightiest invasion force of ancient times. RATING: AA

6. Tue 12:00 PM, 25 Mar 2025 on Nat Geo HD channel

   Treasures of the Deep: Check out some of the richest wrecks in the world as the series drains the ocean surroundings sunken treasure ships. RATING: AA

7. Mon 12:00 PM, 24 Mar 2025 on Nat Geo HD channel

   Sunken Cities: Experts use cutting-edge technology to drain the sites of lost civilisations as they investigate the forces that caused these cities to vanish beneath the waves. RATING: AA

8. Mon 12:00 AM, 24 Feb 2025 on Nat Geo HD channel

   Lost Graves: Intrepid marine archaeologists shine a new light on graves long lost to the depths, coaxing secrets from their forgotten bones. U. (S5, ep 5)

9. Sat 2:00 PM, 8 Feb 2025 on Nat Geo HD channel

   Lost Graves: Intrepid marine archaeologists shine a new light on graves long lost to the depths, coaxing secrets from their forgotten bones. U. (S5, ep 5)

10. Mon 12:00 AM, 13 Jan 2025 on Nat Geo HD channel

    Lost Graves: Intrepid marine archaeologists shine a new light on graves long lost to the depths, coaxing secrets from their forgotten bones. U. (S5, ep 5)