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Angkor: Hidden Jungle Empire - S53 E2

Deep in the Cambodian jungle lie the ruins of Angkor, a marvel of urban engineering and the seat of the once-mighty Khmer Empire. New discoveries are revealing how this ancient metropolis was built and what likely led to its devastating collapse.

• Wednesday September 9, 2026 9:00 pm ET on KET
• Wednesday September 9, 2026 8:00 pm CT on KET
• Thursday September 10, 2026 5:00 pm ET on KET
• Thursday September 10, 2026 4:00 pm CT on KET
• Friday September 11, 2026 2:00 am ET on KET
• Friday September 11, 2026 1:00 am CT on KET
• Sunday September 13, 2026 7:00 pm ET on KET2
• Sunday September 13, 2026 6:00 pm CT on KET2
• Tuesday September 15, 2026 1:00 am ET on KET2
• Tuesday September 15, 2026 12:00 am CT on KET2

The Battle to Breathe - S53 E9

Follow the decades-long scientific quest that led to a breakthrough prescription for cystic fibrosis - a combination of three drugs called Trikafta.

• Wednesday September 16, 2026 9:00 pm ET on KET
• Wednesday September 16, 2026 8:00 pm CT on KET
• Thursday September 17, 2026 5:00 pm ET on KET
• Thursday September 17, 2026 4:00 pm CT on KET
• Friday September 18, 2026 2:00 am ET on KET
• Friday September 18, 2026 1:00 am CT on KET
• Sunday September 20, 2026 7:00 pm ET on KET2
• Sunday September 20, 2026 6:00 pm CT on KET2
• Tuesday September 22, 2026 1:00 am ET on KET2
• Tuesday September 22, 2026 12:00 am CT on KET2

Knowledge Keepers - S53 E10

See how cultural traditions inform remarkable innovations, from ancient sea farming techniques to celestial navigation methods.

• Wednesday September 23, 2026 9:00 pm ET on KET
• Wednesday September 23, 2026 8:00 pm CT on KET
• Thursday September 24, 2026 5:00 pm ET on KET
• Thursday September 24, 2026 4:00 pm CT on KET
• Friday September 25, 2026 2:00 am ET on KET
• Friday September 25, 2026 1:00 am CT on KET
• Sunday September 27, 2026 7:00 pm ET on KET2
• Sunday September 27, 2026 6:00 pm CT on KET2
• Tuesday September 29, 2026 1:00 am ET on KET2
• Tuesday September 29, 2026 12:00 am CT on KET2

Stone Age Masterpiece - S53 E11

Scientists study the decorated cave Chauvet, hidden in the gorges of Southern France, searching for clues about why people arrived there and what motivated them to cover its walls with drawings.

• Wednesday September 30, 2026 9:00 pm ET on KET
• Wednesday September 30, 2026 8:00 pm CT on KET
• Thursday October 1, 2026 5:00 pm ET on KET
• Thursday October 1, 2026 4:00 pm CT on KET
• Friday October 2, 2026 2:00 am ET on KET
• Friday October 2, 2026 1:00 am CT on KET
• Sunday October 4, 2026 7:00 pm ET on KET2
• Sunday October 4, 2026 6:00 pm CT on KET2
• Tuesday October 6, 2026 1:00 am ET on KET2
• Tuesday October 6, 2026 12:00 am CT on KET2

Space Wars - S53 E12

Explore the escalating military struggle to control space and satellites. Learn why the satellites we rely on are vulnerable to attack, how debris is crowding Earth's orbits and what can be done to protect them.

• Wednesday October 7, 2026 9:00 pm ET on KET
• Wednesday October 7, 2026 8:00 pm CT on KET
• Thursday October 8, 2026 5:00 pm ET on KET
• Thursday October 8, 2026 4:00 pm CT on KET
• Friday October 9, 2026 2:00 am ET on KET
• Friday October 9, 2026 1:00 am CT on KET

Recent

Egypt's Tombs of Amun - S52 E4

• Tuesday September 8, 2026 1:00 am ET on KET2
• Tuesday September 8, 2026 12:00 am CT on KET2
• Sunday September 6, 2026 7:00 pm ET on KET2
• Sunday September 6, 2026 6:00 pm CT on KET2
• Friday September 4, 2026 2:00 am ET on KET
• Friday September 4, 2026 1:00 am CT on KET
• Thursday September 3, 2026 5:00 pm ET on KET
• Thursday September 3, 2026 4:00 pm CT on KET
• Wednesday September 2, 2026 9:00 pm ET on KET
• Wednesday September 2, 2026 8:00 pm CT on KET

Human: Into the Americas - S52 E15

• Tuesday September 1, 2026 1:00 am ET on KET2
• Tuesday September 1, 2026 12:00 am CT on KET2
• Sunday August 30, 2026 7:00 pm ET on KET2
• Sunday August 30, 2026 6:00 pm CT on KET2
• Friday August 28, 2026 2:00 am ET on KET
• Friday August 28, 2026 1:00 am CT on KET
• Thursday August 27, 2026 5:00 pm ET on KET
• Thursday August 27, 2026 4:00 pm CT on KET
• Wednesday August 26, 2026 9:00 pm ET on KET
• Wednesday August 26, 2026 8:00 pm CT on KET

Human: Origins - S52 E12

• Tuesday August 25, 2026 1:00 am ET on KET2
• Tuesday August 25, 2026 12:00 am CT on KET2
• Sunday August 23, 2026 7:00 pm ET on KET2
• Sunday August 23, 2026 6:00 pm CT on KET2
• Friday August 21, 2026 2:00 am ET on KET
• Friday August 21, 2026 1:00 am CT on KET
• Thursday August 20, 2026 5:00 pm ET on KET
• Thursday August 20, 2026 4:00 pm CT on KET
• Wednesday August 19, 2026 9:00 pm ET on KET
• Wednesday August 19, 2026 8:00 pm CT on KET

Return to the Moon - S53 E8

• Thursday August 13, 2026 4:30 pm ET on KET
• Thursday August 13, 2026 3:30 pm CT on KET