National Geographic Channel HDTV (NGCHD)

A terrifying tale of demonic possession in a witch trial in Ireland. (Repeat).

The most-famous witch trials of them all: Salem, Massachusetts (Repeat).

A headless skeleton is discovered on Australia's Beacon Island. Near the Marshall Islands in the Pacific Ocean, a huge undersea crater is discovered. In Mexico, an investigation into a bizarre island full of dolls reveals a grim history. Strange animal bones are found in a grave on an island in the English Channel. (New).

Human remains are discovered near Croghan Hill, Ireland—a place where ancient kings were once crowned. (New).

Heading to a cemetery crammed with skeletons, and discovering the surprising new evidence challenging what we thought we knew about the final days of the once-mighty ancient empire. (Repeat).

A headless skeleton is discovered on Australia's Beacon Island. Near the Marshall Islands in the Pacific Ocean, a huge undersea crater is discovered. In Mexico, an investigation into a bizarre island full of dolls reveals a grim history. Strange animal bones are found in a grave on an island in the English Channel. (Repeat).

Human remains are discovered near Croghan Hill, Ireland—a place where ancient kings were once crowned. (Repeat).

Deep beneath the Egyptian desert, archaeologists find the first fully intact funeral home. (Repeat).

Archaeologists open the tomb's largest stone sarcophagus for the first time since 600 B.C. (Repeat).

The team attempts to decode the mystery of an enormous sarcophagus with a broken seal. (Repeat).

The team uncovers a priestly tomb that puts them on the trail of a mysterious cult. (Repeat).

CBP pulls a line of meth from a gas tank and stops an internal body carrier with fentanyl. (Repeat).

Paid Programming. (Repeat).

Paid Programming. (Repeat).

Paid Programming. (Repeat).

Paid Programming. (Repeat).

Paid Programming. (Repeat).

Paid Programming. (Repeat).

Looking into the secrets of the Spanish Armada that was defeated when they tried to conquer England. (Repeat).

Over the past century, advances in technology have fueled a race to build gigantic ships. When things go wrong, they become awe-inspiring wrecks. (Repeat).

Exploring the seabed near Pearl Harbour to understand Japan's surprise attack during WWII. (Repeat).

A look into how Tham Luang managed to save 12 boys from the Thai cave they were trapped in. (Repeat).

A survey of the D-Day shipwrecks sheds light on the biggest amphibious invasion in history. (Repeat).

Lost ships reveal the race to look for gold in the Klondike and California gold rushes. (Repeat).

An expedition, funded by Microsoft co0-founder Paul Allen, uncovers some of the biggest mysteries from the Battle of the Pacific. (Repeat).

A look at the secrets of New York City. (Repeat).

The unexpected story of how Rome dominated the world for 500 years by conquering the sea. (Repeat).

The mystery of Loch Ness is revealed. (Repeat).

Elite cavers attempt to reach the bottom of the world's deepest cave. (Repeat).