Premiered: July 08, 2003, on CBS
Rating: None
Premise: Thirteen houseguests try to avoid eviction in order to win the grand prize of $500,000. The fourth edition of the reality series is dubbed `X-Factor.' The reason for that name: eight of the players learn upon entering the house that they are being reunited with an ex-boyfriend or ex-girlfriend with whom they may have to spend the next three months. For some, it's a bitter revelation that leads to plenty of heated confrontations.