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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 42 Vaccines Calling the Shots
- Season 42 Rise of the Hackers
- Season 42 Why Planes Vanish
- Season 42 Surviving Ebola
- Season 42 Ben Franklin's Balloons
- Season 42 First Air War
- Season 42 Bigger Than T. rex
- Season 42 Emperor’s Ghost Army
- Season 42 Killer Landslides
- Season 42 First Man on the Moon
- Season 42 Big Bang Machine
- Season 42 Sunken Ship Rescue
- Season 42 Sinkholes—Buried Alive
- Season 42 Colosseum: Roman Death Trap
- Season 42 Petra: Lost City of Stone
- Season 42 Hagia Sophia: Istanbul’s Ancient Mystery
- Season 42 The Great Math Mystery
- Season 42 Invisible Universe Revealed
- Season 42 Nazi Attack on America
- Season 42 Lethal Seas
- Season 42 Chasing Pluto
- Season 42 Nuclear Meltdown Disaster
NOVA - Season 42 Episode 1 Vaccines Calling the Shots
6.80 55 minutes Diseases that were largely eradicated in the United States a generation ago—whooping cough, measles, mumps—are returning, in part because nervous parents are skipping their children’s shots. NOVA’s “Vaccines—Calling the Shots" takes viewers around the world to track epidemics, explore the science behind vaccinations, hear from parents wrestling with vaccine-related questions, and shed light on the risks of opting out.
