CBS has announced that "Big Brother 4" will premiere on Tuesday, July 8 (8:00-9:00 PM, ET/PT) with the first of its three weekly broadcasts.

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"Big Brother 4" will also be broadcast on Wednesdays (9PM, live ET), beginning July 9 and Fridays (8PM, ET), effective July 11. The Wednesday edition will feature the live eviction of one of the houseguests.

As in previous editions of the series, "Big Brother 4" follows a group of strangers living together in a house outfitted with dozens of cameras and microphones recording their every move 24 hours a day. One by one, the houseguests will vote each other out of the house. At the end of three months, the last remaining houseguest will receive the grand prize of $500,000. As in previous installments, the houseguests should be prepared for new twists and challenges.