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Each 30 minute episode is dedicated to a separate issue or theme and consists mainly of related short featurettes, which explain, explore and educate how things of everyday life and even complex systems work. It spans a wide variety of topics from technology and industry to something as mundane as how the postal service works.
Specials
4 Episodes
Season 1
13 Episodes • 1981
Season 2
13 Episodes • 1983
Season 3
13 Episodes • 1984
Season 4
10 Episodes • 1985
Season 5
10 Episodes • 1986
Season 6
8 Episodes • 1987
Season 7
9 Episodes • 1988
Season 8
6 Episodes • 1989
Season 9
6 Episodes • 1990
Season 10
5 Episodes • 1991
Season 11
6 Episodes • 1992
Season 12
6 Episodes • 1993
Season 13
6 Episodes • 1994
Season 14
3 Episodes • 1995
Season 15
4 Episodes • 1995
Season 16
5 Episodes • 1996
Season 17
6 Episodes • 1996
Season 18
9 Episodes • 1998
Season 19
10 Episodes • 1999
Season 20
9 Episodes • 2000
Season 21
8 Episodes • 2001
Season 22
9 Episodes • 2002
Season 23
7 Episodes • 2003
Season 24
9 Episodes • 2004
Season 25
10 Episodes • 2005
Season 26
16 Episodes • 2006
Season 27
16 Episodes • 2007
Season 28
16 Episodes • 2008
Season 29
16 Episodes • 2009
Season 30
10 Episodes • 2010
Season 31
16 Episodes • 2011
Season 32
14 Episodes • 2012
Season 33
16 Episodes • 2013
Season 34
12 Episodes • 2014
Season 35
12 Episodes • 2015
Season 36
17 Episodes • 2016
Season 37
14 Episodes • 2017
Season 38
14 Episodes • 2018
Season 39
13 Episodes • 2019
Season 40
13 Episodes • 2020
Season 41
13 Episodes • 2022
Season 42
12 Episodes • 2023
Season 43
9 Episodes • 2023
Season 44
15 Episodes • 2025
Season 45
8 Episodes • 2026
