Big Brother México season 4

Big Brother 2015 (also being marketed as Big Brother PM by the network) is the fourth regular season of Big Brother México, aired by Televisa through Canal 5. This is the show's revival in the country after being off the air for ten years, and its executive producer is Miguel Ángel Fox, one of the country's most recognized television producers. As soon as the announcement of the new season was made in June 2015, castings began both online and through open calls that took place between June and August 2015 all over Mexico.

After much speculation, on September 10, 2015 it was announced that Season 1 host Adela Micha will return to host Big Brother México and the premiered on September 21, 2015 on Canal 5. As they did with the first instalment, Sky will once again provide the 24/7 live coverage of the house.

Format
According to Fox, this season is going to be a more ambitious project than it's ever been before. When asked by reporters about what will be the difference between this updated version of the show versus the ones aired more than ten years ago, Fox states that for this season all challenges will mix extreme and environmental-friendly elements, that it'll be a more psychological experience and also the interaction with viewers with social media.

Housemates
During the press conference held to announce the show, its executive producer, Miguel Ángel Fox, confirmed that a total of 15 contestants will enter the house. Casting calls began on July 11, 2015 and were held in Guadalajara, Mérida, Tijuana, Culiacán, Monterrey & Mexico City.

Official Housemates
On Launch Night, host Adela Micha announced that on Day 1 (September 21, 2015), only 7 housemates (Ana, Israel, Lilian, Rossana, Shira & Sargento plus intruder Daniel) will actually enter the House that night, the other 7 official housemates (Chintro, Christopher, Danielle, Fanny, Jimena, Paito San & Taka Taka) will enter on Day 2 (September 22, 2015). The official housemates are: Day 1's seventh and final housemate, Daniel Villareal, instead of being an actual housemate, he's the Audience Player, his stay won't be a long one, however he'll play under the audience's instructions during his stay in the house. His original place will be occupied by one of the 3 candidates. He left the House on Day 11, following Fanny's eviction and was replaced by Eduardo.

Secret Housemates
On September 19, 2015, three potential housemates entered a "Secret Room" inside the house, and they'll stay there for the upcoming 6 days and the public will vote on Canal 5's page on which one of them will become the 15th housemate of this season.