Big Brother 27 Premieres With Mystery Theme

Big Brother 27 will premiere with a 90-minute episode on CBS on July 10, marking the show's 25th anniversary and introducing a mystery-themed season titled 'Big Brother: A Summer of Mystery' set in the transformed Hotel Mystère. Unique house rooms now include a secretive wine cellar, a Victorian conservatory lounge, and a boxing ring gym, enhancing the suspenseful hotel concept. Unexpected twists such as a masked visitor, a secret accomplice, and a 'Mystery Houseguest' are planned. Julie Chen Moonves returns as host, and extended 90-minute Wednesday episodes will be featured alongside a new Friday segment, 'Big Brother: Unlocked,' offering behind-the-scenes content with former All-Stars. Live feeds will launch July 13 on Paramount+ and PlutoTV, but the cast has not yet been announced. CBS is promoting this as its 'biggest season ever.'