Big Brother 16, also known as Big Brother 2015 and Big Brother: Timebomb, is the sixteenth series of the British reality television series Big Brother. It began on 12 May 2015 on Channel 5, the earliest UK launch date ever and the first series to launch in May since Big Brother 8, and ended 66 days later on 16 July 2015. It is the fifth regular series and the thirteenth series of Big Brother overall to air on the channel. The series was also aired on TV3, making it the first Big Brother series to air in the Republic of Ireland since Ultimate Big Brother in 2010.