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- Season 0 1999-07-13
- Season 1 1974-03-03
- Season 2 1974-11-03
- Season 3 1976-01-04
- Season 4 1977-01-05
- Season 5 1978-01-04
- Season 6 1979-01-04
- Season 7 1980-01-15
- Season 8 1981-01-06
- Season 9 1982-01-10
- Season 10 1983-01-18
- Season 11 1984-01-17
- Season 12 1985-01-15
- Season 13 1986-01-21
- Season 14 1987-01-20
- Season 15 1988-01-19
- Season 16 1989-01-17
- Season 17 1990-01-09
- Season 18 1991-01-08
- Season 19 1992-01-14
- Season 20 1993-01-05
- Season 21 1994-01-18
- Season 22 1995-01-08
- Season 23 1995-10-10
- Season 24 1996-10-01
- Season 25 1997-10-07
- Season 26 1998-10-06
- Season 27 1999-10-05
- Season 28 2000-10-24
- Season 29 2001-10-02
- Season 30 2002-09-03
- Season 31 2003-09-30
- Season 32 2004-09-28
- Season 33 2005-09-20
- Season 34 2006-09-05
- Season 35 2007-10-09
- Season 36 2008-10-07
- Season 37 2009-10-06
- Season 38 2010-10-19
- Season 39 2011-09-07
- Season 40 2012-10-10
- Season 41 2013-09-11
- Season 42 2014-09-10
- Season 43 2015-09-16
- Season 44 2016-09-07
- Season 45 2018-01-10
- Season 46 2019-01-02
- Season 47 2020-02-05
- Season 48 2021-01-13
- Season 49 2022-02-01
- Season 50 2023-02-01
- Season 51 2024-01-31
Season 51 Episode
- Season 44 15 Years of Terror
- Season 44 School of the Future
- Season 44 Great Human Odyssey
- Season 44 Super Tunnel
- Season 44 Treasures of the Earth: Gems
- Season 44 Treasures of the Earth: Metals
- Season 44 Treasures of the Earth: Power
- Season 44 Secrets of the Sky Tombs
- Season 44 The Nuclear Option
- Season 44 Search for the Super Battery
- Season 44 Ultimate Cruise Ship
- Season 44 The Origami Revolution
- Season 44 Why Trains Crash
- Season 44 Holocaust Escape Tunnel
- Season 44 Building Chernobyl's Megatomb
- Season 44 Chinese Chariot Revealed
- Season 44 Poisoned Water
- Season 44 Eclipse Over America
- Season 44 Ghosts of Stonehenge
- Season 44 Death Dive to Saturn
- Season 44 Secrets of the Shining Knight
- Season 44 Secrets of the Forbidden City
- Season 44 Killer Volcanoes
- Season 44 Killer Hurricanes
- Season 44 Killer Floods
- Season 44 Extreme Animal Weapons
- Season 44 Bird Brain
- Season 44 Day the Dinosaurs Died
NOVA - Season 44 Episode 25 Killer Floods
6.80 55 minutes All over the world, scientists are discovering traces of ancient floods on a scale that dwarfs even the most severe flood disasters of recent times. What triggered these cataclysmic floods, and could they strike again? In the Channeled Scablands of Washington State, the level prairie gives way to bizarre, gargantuan rock formations.
