You can watch Celebrity Big Brother UK 2025 primarily on the British network ITV. The episodes air on ITV1 and are also available to stream for free on the ITVX streaming service in the UK

. If you are in the U.S. or outside the UK, the show is geo-restricted, but you can watch it by using a VPN service to connect to a UK server. VPNs like ExpressVPN or NordVPN allow you to access ITVX and stream the show live or on demand from anywhere

. For older seasons of Celebrity Big Brother (the U.S. version), some are available to stream on Paramount+ in the U.S.

. Additionally, clips and highlights from the current UK season can be found on YouTube

. Summary:

• UK viewers: Watch free on ITV1 and ITVX.
• US/international viewers: Use a VPN (e.g., ExpressVPN or NordVPN) to access ITVX and watch live or on demand.
• Older US seasons: Available on Paramount+.
• Clips/highlights: Available on YouTube.

This method is currently the most reliable way to watch the 2025 Celebrity Big Brother season online.