Big Brother Portugal is the Portuguese version of the international reality television franchise Big Brother, produced by Endemol for Portuguese channel TVI. TVI launched the show in 2000. Since its beginning, it has been a great success.

The show had seven editions with three being celebrity versions (Big Brother Famosos 1, Big Brother Famosos 2 and Big Brother VIP), presented by Teresa Guilherme. The popularity of this show steadily declined until TVI canceled after the fourth season in 2003.

In 2010, TVI aired the first season of Secret Story - Casa dos Segredos franchise. The show based on the original French version of Secret Story.

In 2013, after 11 years, TVI aired the third celebrity version of Big Brother, titled Big Brother VIP.

In 2020, TVI brought Big Brother to life to his first civilian series since 2003. During this new season, the show had a quarantine phase at the beginning, called BB ZOOM, where every housemate had to be isolated in one hotel room due to COVID-19. The contestants had to pass two negative tests to enter the Big Brother house.After the end of Big Brother 2020, the network renewed the show for a sixth season calling it Big Brother: Revolution starting in September 2020 with its original host Teresa Guilherme.