Brian Dowling returned to host the main show , with Emma Willis , Alice Levine and Jamie East also returning to host spin-off show '' Big Brother 's Bit on the Side '' . This series was sponsored by hair product brand Schwarzkopf Live Color XXL . Though overall ratings were higher than the previous series , the episode broadcast on Friday 27 July recorded the lowest figures in the programme 's history at just 615,000 ( being broadcast at the same time as the opening ceremony of the 2012 Olympics ) , then the episode broadcast on 12 August recorded even lower figures at just 483,000 ( being broadcast at the same time as the closing ceremony )
opening ceremony of the 2012 Olympics
2012 Summer Olympics opening ceremony
Big Brother (British series 13)