Overview:Big Brother 4 has started with a brand-new looking house, 12 new contestants. In this hour-long launch night special Davina introduces us to all twelve brand new contestants; Anouska (20), Cameron (32), Federico (23), Gos (31), Jon (29), Justine (27), Nush (23), Ray (25), Scott (27), Sissy (26) Steph (27) and Tania, (22). After all twelve enter, Davina makes an important announcement. The first nominations will be happening live in just an hours time and the first eviction will be happening in a week!