Big Brother's Big Brain
Big Brother Show
Description Sister-show
Presenter(s) Dermot O'Leary (2006–2007)
Series Active Big Brother 7Celebrity Big Brother 5

Big Brother's Big Brain was a live discussion programme that aired from May 22, 2006 during Big Brother 7 until the end of Celebrity Big Brother 5. It aired on Channel 4 every Monday at 11:05 pm. Presented by Dermot O'Leary, the show featured psychologists analysing the housemates' behaviour. This replaced the pre-recorded psychology clips shown on the Sunday night highlights show in previous series. BBBB was renamed Big Brother: On The Couch for Big Brother 8 with a new timeslot and Davina McCall replacing O'Leary as presenter.

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