Big Brother season 27 release date and time revealed

CBS's much-awaited Big Brother season 27 will premiere on July 10, 2025. The highly popular reality show will air at 8 pm PT on CBS.

The duration of the episodes will be different on different days of the week. From July 20, 2025, onwards, there will be 60-minute-long regular episode releases. However, the Wednesday episodes will be 90 minutes in length.

Hosted by Julie Chen Moonves, the latest update revealed various additional details. It includes a Diary Room with the Power of Veto, among other features.

Big Brother season 27: Release date, time, theme, and more details explored

​CBS is celebrating the 25th anniversary with the upcoming season of Big Brother season 27. For that, the theme has also been revealed:

Big Brother: A Summer of Mystery

On July 2, 2025, the show makers revealed the latest updates regarding the show. The release date is scheduled for July 10, 2025, at 8:00 pm PT on CBS. Viewers will witness a 90-minute premiere on Thursday. Following that, the next episode will air on Sunday, July 13, 2025, at 8 pm PT.

Apart from that, fans will be able to watch new episodes of Big Brother season 27 on Wednesdays, Thursdays, and Sundays. The show will feature Live Evictions.

For the fans wondering about Big Brother season 27 cast members, CBS has not yet revealed the details. Moreover, it will be hosted by Julie Chen Moonves.

Speaking more about the upcoming season's theme, fans can expect "summer" vibes with added twists. According to CBS, there will be "unexpected twists and turns" on Big Brother season 27.

A "secret accomplice" will be featured on the reality show. Also, there will be a "shocking arrival" of a Mystery Houseguest. The individual's identity won't be revealed to everyone, depending on the twist.

The summer house where housemates will be living will feature exciting parts. It includes a wineless wine cellar, a boxing ring, a poison bar, vintage vibes, hidden passageways, and more.

In her July 2, 2025, interview with USA Today, Big Brother season 27 host Julie Chen Moonves revealed:

"Things that you think might just be there for decoration actually has a purpose beyond. Our motto is expect the unexpected, and this season we take that motto into the physical being of the house itself."

She also talked about the bunk beds. Long-time fans must remember them from the show's debut season. Finally, they are making a comeback with the upcoming Big Brother season 27. Julie referred to the bunk beds as, they would look like "first class carts on the Orient Express." She called them "elegant."

As for the show's format, each week, one of the houseguests will become Head of the Household. He/She will have certain powers, including nominating two fellow housemates for elimination, and more.

Stay tuned for more updates.