The Big Bang Theory viewers per season according to Wikipedia:
1) 2007–08–8.3M
2) 2008–09–10.0M (↑ 21%)
3) 2009–10–14.2M (↑ 42%)
4) 2010–11–13.2M (↓ 7%)
5) 2011–12–15.8M (↑ 20%)
6) 2012–13–18.7M (↑ 18%)
7) 2013–14–20.0M (↑ 7%)
8) 2014–15–19.1M (↓ 5%)
9) 2015–16–20.4M (↑ 7%)
10) 2016–17–19.0M (↓ 7%)
11) 2017–18–18.6M (↓ 2%)
The Big Bang Theory ranking by year for non-sports programming:
1) 2009–10 — #13
2) 2010–11 — #13
3) 2011–12 — #2
4) 2012–13 — #2
5) 2013–14 — #2
6) 2014–15 — #1
7) 2015–16 — #2
8) 2016–17 — #1
9) 2017–18 — #1
The big question: Who will get the streaming rights? TBS currently owns the rights for re-runs with a no streaming clause in their contract.
The Big Bang Theory cost per ad spot during season 12:
1) Episodes 1–23 — $259K
2) Series finale — $1.5M
More #1: How the salaries of ‘The Big Bang Theory’ actors compare with TV’s highest-paid stars
More #3: ‘The Big Bang Theory’ makes history doing what no other TV cast has done
