When did Big Brother Season 21 Episode 40 air?
Big Brother Season 21 Episode 40 aired on September 25, 2019.


Expect the unexpected.
American version of the reality game show which follows a group of HouseGuests living together 24 hours a day in the "Big Brother" house, isolated from the outside world but under constant surveillance with no privacy for three months.

Find out will win the final and most powerful HoH of the summer. And who the jury will choose to get the $500,000 prize.
Direct answers for episode-level questions and details.
Big Brother Season 21 Episode 40 aired on September 25, 2019.
This episode runs for approximately 45 minutes.
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