Big Brother 8 was the eighth season of the American reality television series Big Brother. It is based upon the Netherlands series of the same name, which gained notoriety in 1999 and 2000. The series premiered on CBS on July 5, 2007 and lasted eleven weeks until the live finale on September 18, 2007. The eighth season saw little to no change in ratings. The season premiered to a total of 7.40 million viewers, the lowest premiere numbers for any season at the time. The season finale had a total of 8.51 million viewers, making it the second lowest rated finale at the time. In total, the series averaged 7.52 million viewers, only .4 behind the previous edition. Big Brother 8 featured a total of 14 HouseGuests, the same amount that was featured in the previous season.