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Big Brother Season 27 to Premiere July 10 with New Cast and Expanded Episodes

The long-running CBS reality series will feature an all-new group of houseguests, 90-minute episodes during premiere week, and a new companion series, 'Big Brother: Unlocked.'

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Julie Chen Moonves will return as host for Season 27 of "Big Brother."
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Overview

  • Season 27 of Big Brother will launch on CBS on July 10, 2025, with a 90-minute premiere episode, followed by another 90-minute episode on July 13.
  • The season will feature an entirely new cast of houseguests, with no returning players competing this year.
  • Regular episodes will air Wednesdays at 8–9:30 p.m. ET, and Thursdays and Sundays at 8 p.m. ET, with live evictions on Thursdays.
  • Starting July 25, the new companion series 'Big Brother: Unlocked' will air every other Friday, offering behind-the-scenes footage, exclusive interviews, and insights from former houseguests.
  • Julie Chen Moonves returns as host, continuing her long-standing role anchoring the franchise as it celebrates over 25 years on air.