Episodes

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[back to top] American Idol  Episodes (Semifinals only)

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# Date Episode / Theme #Cn #Pf Average Rating Hi Lo σ 0-19 20-39 40-59 60-79 80-100
26 38418 Mar 7, 2005
38418 AI4 - Top 16 (Guys)
Open
 8 8
50.4
 
85 16 17.6 1 2 3 1 1
27 38419 Mar 8, 2005
38419 AI4 - Top 16 (Girls)
Open
 8 8
47.5
 
80 7 16.4 1 2 2 2 1
28 38769 Feb 21, 2006
38769 AI5 - Top 24 (Girls)
Open
 12 12
45.8
 
80 10 15.8 3 2 3 3 1
29 38783 Mar 7, 2006
38783 AI5 - Top 16 (Girls)
Open
 8 8
50.4
 
87 12 18.5 1 1 4 1 1
30 38784 Mar 8, 2006
38784 AI5 - Top 16 (Guys)
Open
 8 8
49.8
 
80 24 19.9 0 3 2 2 1
31 39141 Feb 28, 2007
39141 AI6 - Top 20 (Girls)
Open
 10 10
50.6
 
92 13 14.8 2 2 2 3 1
32 39148 Mar 7, 2007
39148 AI6 - Top 16 (Girls)
Open
 8 8
50.3
 
88 17 14.8 1 1 3 2 1
33 39497 Feb 19, 2008
39497 AI7 - Top 24 (Guys)
1960s
 12 12
47.3
 
82 17 17.6 2 4 2 3 1
34 39498 Feb 20, 2008
39498 AI7 - Top 24 (Girls)
1960s
 12 12
49.3
 
84 6 19.5 2 1 4 4 1
35 39512 Mar 5, 2008
39512 AI7 - Top 16 (Girls)
1980s
 8 8
51.9
 
80 26 20.9 0 1 5 1 1
36 39869 Feb 25, 2009
39869 AI8 - Semi Group 2
Billboard Hot 100
 12 12
43.6
 
84 4 19.8 2 4 3 2 1
37 39875 Mar 3, 2009
39875 AI8 - Semi Group 3
Billboard Hot 100
 12 12
51.8
 
84 12 19.6 2 2 2 5 1
38 40233 Feb 24, 2010
40233 AI9 - Top 24 (Guys)
Billboard charts
 12 12
36.8
 
84 3 19.0 3 4 3 1 1
39 40246 Mar 9, 2010
40246 AI9 - Top 16 (Girls)
Billboard charts
 8 8
51.8
 
90 14 13.3 1 2 2 2 1
40 40247 Mar 10, 2010
40247 AI9 - Top 16 (Guys)
Billboard charts
 8 8
49.5
 
80 21 23.3 0 2 3 2 1
41 40605 Mar 3, 2011
40605 AI10 - Wild Card
Open
 6 6
55.8
 
82 26 18.3 0 2 1 2 1
42 41332 Feb 27, 2013
41332 AI12 - Vegas QF Girls 3
Open
 10 10
50.5
 
81 26 22.7 0 3 3 3 1
43 41690 Feb 20, 2014
41690 AI13 - Wild Card
Open
 5 5
40.6
 
82 20 16.8 0 3 1 0 1
44 42060 Feb 25, 2015
42060 AI14 - Top 12 Guys
Open
 12 12
47.0
 
85 10 18.0 2 3 2 4 1
45 42068 Mar 5, 2015
42068 AI14 - Top 8 Girls
Motown
 8 8
46.0
 
82 7 19.4 1 2 3 1 1
46 43213 Apr 23, 2018
43213 AI16 - Victory/2nd Chance
Open
 14 14
50.5
 
86 8 20.5 1 4 4 4 1
47 43569 Apr 14, 2019
43569 AI17 - Top 14
Open
 14 14
44.6
 
85 3 17.4 2 4 4 3 1
48 43570 Apr 15, 2019
43570 AI17 - Victory/2nd Chance
Open
 14 14
43.6
 
81 2 17.9 2 4 5 2 1
49 37439 Jul 2, 2002
37439 AI1 - Semi Group 3
Open
 10 10
36.8
 
60 20 18.1 0 5 4 1 0
50 37446 Jul 9, 2002
37446 AI1 - Wild Card
Open
 5 5
49.0
 
65 31 20.2 0 1 2 2 0
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