‘Big Brother’ Season 27 Release Schedule—When Do New Episodes Drop?

Get ready for another wild summer because Big Brother Season 27 is officially underway. With the surprise arrival of a series legend during the premiere, the 25th‑anniversary season is shaping up to be more exciting than ever. Keep reading for the 2025 release schedule, how to watch new episodes and more.

Hosted by Julie Chen Moonves, Big Brother is CBS’s long-running reality competition series that follows a group of people living together with no access to the outside world. The house is equipped with more than 100 HD cameras and microphones, recording the contestants’ every move 24/7. Each week, one houseguest is voted out, and the last one standing is awarded the massive $750,000 grand prize.

ForbesWho’s In The ‘Big Brother’ Season 27 Cast? Meet The HouseguestsBy Monica Mercuri

This year’s theme is Big Brother: A Summer of Mystery, and the house has been transformed into the Hotel Mystère, complete with hidden passageways, a secret wine cellar, a Victorian conservatory lounge and a poison bar. Season 27 also includes a “masked visitor, a secret accomplice and the shocking arrival of a ‘Mystery Houseguest’ whose identity will remain under wraps … at least for now,” according to Paramount.

On July 10, seventeen contestants entered the house in hopes of winning the hefty sum of cash. This season’s cast includes a professional bull rider, event curator, marketing manager, AI consultant, aura painter, attorney and a dungeon master. Season 13 winner Rachel Reilly also checked in as the 17th houseguest during the premiere.

Here’s everything you need to know about watching Big Brother Season 27 so you don’t miss a single episode.

When Do New Episodes Of Big Brother Season 27 Come Out?

New hour-long episodes of Big Brother will air on Sundays and Thursdays, with 90-minute episodes on Wednesdays, all starting at 8 p.m. ET. The show will also airing Big Brother: Unlocked every other Friday beginning July 25, airing from 8 to 9 p.m. ET.

What Is The Big Brother Season 27 Release Schedule?

New episodes of Big Brother will air on Thursdays, Sundays and Wednesdays. Here’s the the release schedule for the main show so far:

• Thursdays at 8 p.m. ET/PT
  • July 10 (90‑minute premiere)
  • July 17, 24, 31 (60 minute episodes)
  • August 7, 14, 21, 28 (60 minute episodes)
  • September 4, 11, 18, 27 (60 minute episodes)
  • October TBA
• Sundays at 8 p.m. ET/PT
  • July 13 (90‑minute Sunday premiere)
  • July 20, 27 (60 minute episodes)
  • August 3, 20, 17, 24, 31 (60 minute episodes)
  • September 7, 14, 21, 28 (60 minute episodes)
  • October TBA
• Wednesdays at 8 p.m. ET/PT
  • Starting July 16 (90 minute episodes)
  • July 23, 30 (90 minute episodes)
  • August 6, 13, 20, 27 (90 minute episodes)
  • September 3, 10, 17, 24 (90 minute episodes)
  • October TBA

It’s too early to know when the season 27 finale will air, but it will likely take place in early to mid-October. Last year’s season lasted 90 days, while Season 25 in 2023 ran a record-setting 100 days.

What Is Big Brother: Unlocked And When Will It Air?

For the first time, the series will be airing a weekly segment Big Brother: Unlocked, which will feature “never-before-seen broadcast footage from the house, exclusive interviews, surprise guest appearances and unprecedented behind-the-scenes access,” according to CBS.

Big Brother: Unlocked will be released every other Friday at 8 p.m. ET/PT on CBS and will also stream on Paramount+. Here are the scheduled air dates:

• Friday, July 25
• Friday, August 8
• Friday, August 22
• Friday, September 5
• Friday, September 19
• Friday, September 26

How To Watch Big Brother Season 27 On Cable

Big Brother Season 27 will air live on CBS. Cord-cutters can watch Big Brother on a live TV streaming services that carries the network, including DirecTV, fuboTV and Hulu+ Live TV. All three sites offer free trials, so you can watch a portion of the new season for free.

How To Watch Big Brother Season 27 On Streaming

New episodes of Big Brother Season 27 will also be available to stream live and on demand on Paramount+.

Paramount+ Premium subscribers can stream live through their local CBS affiliate and watch episodes on demand. Meanwhile, Paramount+ Essential subscribers won’t have live access but can stream episodes the day after they air, according to CBS.

How To Watch The Big Brother Season 27 Live Feeds

Once Season 27 begins, the Big Brother live feeds will be available on Paramount+. Visit the Big Brother show page and select “Live Feeds” to start watching footage from inside the house as soon as it becomes available.

Watch the Big Brother Season 27 premiere teaser below.