Season
- Season 0 2001-04-24
- Season 1 1983-01-16
- Season 2 1984-01-15
- Season 3 1985-01-14
- Season 4 1986-01-20
- Season 5 1987-01-26
- Season 6 1987-12-14
- Season 7 1988-10-09
- Season 8 1989-11-27
- Season 9 1990-09-11
- Season 10 1991-10-14
- Season 11 1992-10-12
- Season 12 1993-10-11
- Season 13 1994-10-17
- Season 14 1995-10-16
- Season 15 1996-10-07
- Season 16 1997-10-06
- Season 17 1998-09-20
- Season 18 1999-09-27
- Season 19 2000-10-01
- Season 20 2001-09-12
- Season 21 2002-09-02
- Season 22 2003-10-08
- Season 23 2004-09-16
- Season 24 2005-10-04
- Season 25 2006-10-02
- Season 26 2007-10-15
- Season 27 2009-01-01
- Season 28 2010-02-01
- Season 29 2010-10-18
- Season 30 2011-10-10
- Season 31 2013-01-07
- Season 32 2014-01-06
- Season 33 2015-01-05
- Season 34 2016-01-04
- Season 35 2016-09-26
- Season 36 2017-10-18
- Season 37 2018-07-30
- Season 38 2019-09-30
- Season 39 2020-07-20
- Season 40 2021-01-07
- Season 41 2022-02-14
- Season 42 2023-01-02
- Season 43 2024-01-22
- Season 44 2025-01-21
- Season 45 2026-02-03
Season 45 Episode
- Season 2 Episode 1
- Season 2 Episode 2
- Season 2 Episode 3
- Season 2 Episode 4
- Season 2 Episode 5
- Season 2 Episode 6
- Season 2 Episode 7
- Season 2 Episode 8
- Season 2 Episode 9
- Season 2 Episode 10
- Season 2 Episode 11
- Season 2 Episode 12
- Season 2 Episode 13
- Season 2 Episode 14
- Season 2 Episode 15
- Season 2 Episode 16
- Season 2 Episode 17
- Season 2 Episode 18
- Season 2 Episode 19
- Season 2 Episode 20
- Season 2 Episode 21
- Season 2 Episode 22
- Season 2 Episode 23
- Season 2 Episode 24
Frontline - Season 2 Episode 15 Man's Best Friends
6.86 55 minutes Examining ethical arguments over the use of animal testing in American laboratories, hospitals, and medical schools. While some animal rights groups break into labs to 'liberate' research animals, many scientists claim any significant restriction on animal testing would end medical progress.
