The return dates for Big Brother vary by country in 2025:
- In the U.S., Big Brother 27 premiered on CBS on July 10, 2025, with a 90-minute premiere episode followed by episodes airing Wednesdays, Thursdays, and Sundays.
- In Australia, Big Brother is returning on Network 10 in the fourth quarter of 2025, with filming beginning in early November and no exact premiere date announced yet. It will return to the original format with live nominations and evictions.
- In the UK, Big Brother 22 is set to begin airing in September 2025 on ITV2, with AJ Odudu and Will Best hosting.
- In the Netherlands and Belgium, Big Brother 2025 began airing on January 6, 2025.
These are the main upcoming or ongoing Big Brother seasons for 2025 in major markets. Let me know if information for a specific country's version is needed.
