The Big Bang Theory season 4 has 24 episode guides and currently identifies 20 soundtrack songs.
The Big Bang Theory season 4 episodes
Episode 1
Sep 23, 2010
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Episode 2
Sep 30, 2010
2 songs
Episode 3
Oct 07, 2010
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Episode 4
Oct 14, 2010
2 songs
Episode 5
Oct 21, 2010
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Episode 6
Oct 28, 2010
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Episode 7
Nov 04, 2010
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Episode 8
Nov 11, 2010
3 songs
Episode 9
Nov 18, 2010
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Episode 10
Dec 09, 2010
1 song
Episode 11
Dec 16, 2010
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Episode 12
Jan 06, 2011
1 song
Episode 13
Jan 20, 2011
1 song
Episode 14
Feb 03, 2011
1 song
Episode 15
Feb 10, 2011
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Episode 16
Feb 17, 2011
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Episode 17
Feb 24, 2011
4 songs
Episode 18
Mar 10, 2011
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Episode 19
Mar 31, 2011
3 songs
Episode 20
Apr 07, 2011
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Episode 21
Apr 28, 2011
1 song
Episode 22
May 05, 2011
1 song
Episode 23
May 12, 2011
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Episode 24
May 19, 2011
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