Plot: 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)