March 24, 1981
45
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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
N/A
Season 1
13 episodes
March 24, 1981
Season 2
13 episodes
Peter Lustig
N/A
January 2, 1983
Season 3
13 episodes
April 1, 1984
Season 4
10 episodes
March 31, 1985
Season 5
10 episodes
April 6, 1986
Season 6
8 episodes
January 4, 1987
Season 7
9 episodes
April 3, 1988
Season 8
6 episodes
October 22, 1989
Season 9
6 episodes
January 14, 1990
Season 10
5 episodes
March 10, 1991
Season 11
6 episodes
September 6, 1992
Season 12
6 episodes
April 4, 1993
Season 13
6 episodes
August 21, 1994
Season 14
3 episodes
October 30, 1995
Season 15
4 episodes
December 24, 1995
Season 16
5 episodes
January 29, 1996
Season 17
6 episodes
December 1, 1996
Season 18
9 episodes
January 11, 1998
Season 19
10 episodes
February 11, 1999
Season 20
9 episodes
February 18, 2000
Season 21
8 episodes
March 22, 2001
Season 22
9 episodes
March 24, 2002
Season 23
7 episodes
April 6, 2003
Season 24
9 episodes
April 4, 2004
Season 25
10 episodes
April 3, 2005
Season 26
16 episodes
October 8, 2006
Season 27
16 episodes
September 16, 2007
Season 28
16 episodes
October 11, 2008
Season 29
16 episodes
October 10, 2009
Season 30
10 episodes
October 24, 2010
Season 31
16 episodes
October 9, 2011
Season 32
14 episodes
October 7, 2012
Season 33
16 episodes
October 13, 2013
Season 34
12 episodes
October 19, 2014
Season 35
12 episodes
November 1, 2015
Season 36
17 episodes
September 25, 2016
Season 37
14 episodes
October 15, 2017
Season 38
14 episodes
September 23, 2018
Season 39
13 episodes
September 22, 2019
Season 40
13 episodes
November 29, 2020
Season 41
13 episodes
January 20, 2022
Season 42
12 episodes
January 22, 2023
Season 43
9 episodes
December 28, 2023
Season 44
15 episodes
January 5, 2025
Season 45
5 episodes
January 4, 2026
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