The Big Brother 10 housemates will be reunited in a special edition of Big Mouth with Davina McCall a week after the finale.

An average of 5.1million viewers tuned in to the Big Brother 10 launch show last night, according to unofficial overnight figures.

Davina McCall, host of BB live shows, will take over presenting duties of spin-off show Big Brother’s Big Mouth when it returns during BB10.