Presented by Dermot O'Leary, Big Brother's Big Brain delved into the minds of the British contestants during series 7 of Big Brother and series 5 of Celebrity Big Brother. Psychologists would join Dermot each week to discuss the affect the show was having on the housemates and offer a professional take on their behaviour and relationships. The spinoff show never returned for series 8, instead it was replaced with Big Brother: On the Couch, changing it's timeslot and host to Davina McCall. | 
