In Season 27 of "Big Brother," houseguests will spend the summer inside Hotel Mystère, an enigmatic yet luxurious version of the "Big Brother" house.

Popular reality show "Big Brother" premiered this week, featuring two Texas residents who say they are up for the challenge.

Big Brother host Julie Chen Moonves had some time to kill during the show's season 27 premiere on Thursday, July 10. The action-packed opener kicked off on a shocking note with the introduction of a mysterious new character called "The Mastermind,

Season 27 of "Big Brother" premieres Thursday. Meet this year's houseguest and see how to watch the CBS original series.

Season 27 of Big Brother premiered last night, and though we're only in the early stages of the season, it's clear that Hotel Mystère is going to be packed with mystery and intrigue. The episode began with this season's houseguests further introducing themselves,

"Big Brother" Season 27 contestants better grab a life vest, because star Rachel Reilly is checking in as the 17th houseguest

Big Brother follows a group of people living together in a house outfitted with more than 100 cameras and 100 microphones, recording their every move 24 hours a day. Each week, someone will be voted out of the house, with the last remaining Houseguest receiving the grand prize of $750,000.

"So there's going to be a strong reaction in both directions for this mystery Houseguest."Ahead of season 27, here are the 12 best Big Brother seasons to watch, all of which are available to stream on Paramount+.

Big Brother returned for its 27th season on July 10, 2025, kicking off a new summer of strategy, alliances, twists, and drama.

Big Brother' is off and running in season 27 on CBS, with double-digit percent growth in total viewers from the year-ago season opener.