Pinoy Big Brother: Celebrity Edition 1 - Chronology

Chronology

• February 21: Gretchen left the house on after Big Brother allowed Gretchen to report to her superiors in the Philippine Air Force, where she serves as a second-class airwoman, to face a summary investigation about her being AWOL, as reported by the Philippine Daily Inquirer. He did this in the proviso that she cannot talk to anyone except those who were investigating her and she must return to the house 24 hours after she left. She returned 14 hours later after the Philippine Air Force officially authorized her to continue her stint in the show.
• February 23: Rico and Aleck had their heads shaved in exchange for P100,000 for each of their beneficiaries: Aleck's father and Mich's caretaker. Rico took what is supposed to be Mich's sacrifice because the latter was advised not to do so due to her emotional anxiety. Their hair was donated to make wigs for young cancer patients.
• February 28: Rustom came out of the closet on national TV by revealing to fellow housemate Keanna Reeves that he is a homosexual. Although parts of it were aired later in the day as it is traditionally, it was aired the next day in its entirety.
• March 6–7: Jasmine Trias visited the housemates and stayed in the house overnight.
• March 10: Gretchen, Rustom, and Rico temporarily "exited" the house as sacrifice for their nominated friends Aleck, Keanna, and Roxanne respectively. It turns out that it was actually a task to test their trust to their friends. Gretchen and Rico returned in the wee hours of the next day while Rustom returned in morning. Voting was not affected regardless.
• March 22: After Rustom's exit, it was announced that Toni handed over her main hosting chores to Mariel, starting the next day. Season 1 contestants Say Alonzo and Uma Khouny would take over as hosts of UpLate. Luis would host the last eviction night. At the time, Toni had her official engagements in the United States. She only returned on the night of the Teen Edition's finale.
• March 26: Season 1 contestant Jason Gainza and ABS-CBN actress Sandara Park entered the house disguised as hooded secret agents to steal the housemates' golden eggs under the directions of Big Brother. Although the two did manage to steal John and Zanjoe's eggs, the housemates found the agents, and as a result the two stayed overnight. Earlier in the day, with the blindfolded housemates as virtual nannies, child stars (from ABS-CBN's Goin' Bulilit and Little Big Star) entered the house and created chaos, also as instructed by Big Brother.
• March 27–28: Season 1 winner Nene Tamayo and veteran actor Tirso Cruz III also entered the house as hooded secret agents, trying to steal John and Zanjoe's eggs. Unlike Jason and Sandara before them, they were successful in stealing John's 25 eggs and Zanjoe's 22. Another season 1 contestant, Franzen Fajardo, would later join the two to steal various supplies to test the housemates.