The Big Bang Theory seasons
12 seasons · CBS
Season 9 is the biggest. Season 12 started 11% lower than season 11, after a wait of 5 months.
The first 30 days
Attention Score on each day after a season came out
Day 1 is the premiere. Each mark on the bottom line is a day with a new episode of season 12.
The Big Bang Theory seasons
Through Nov 5, 2026Season Attention Score is a season's average Attention Score in its first 30 days. How it works
- Season 1Sep 2007 · 17 episodes
- 4 months after season 1Season 2Sep 2008 · 23 episodes
- 4 months after season 2Season 3Sep 2009 · 23 episodes
- 4 months after season 3Season 4Sep 2010 · 24 episodes
- 4 months after season 4Season 5Sep 2011 · 24 episodes
- 5 months after season 5Season 6Sep 2012 · 24 episodes
- 4 months after season 6Season 7Sep 2013 · 24 episodes
- 4 months after season 7Season 8Sep 2014 · 24 episodes
- 5 months after season 8Season 9Sep 2015 · 24 episodes22.9
- 4 months after season 9Season 10Sep 2016 · 24 episodes17.324%
- 5 months after season 10Season 11Sep 2017 · 24 episodes16.17%
- 5 months after season 11Season 12Sep 2018 · 24 episodes14.411%
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Time between seasons
Very regular: a new season about every year.
S1S2S3S4S5S6S7S8S9S10S11S12
2008201120142017