Big Brother is a reality show shown on RTL Televizija in which a number of contestants live in an isolated house trying to avoid being evicted by the public with the aim of winning a large cash prize at the end of the run. It is based on the international Big Brother format produced by Endemol.
In the first four seasons (and the Celebrity season) the house was located in Jadran Film studios, in the Dubrava section of Zagreb. In season 5, the house of Big Brother Thailand was used.
There have been five seasons - 2004, 2005, 2006, 2007 and 2008 plus one celebrity season. Big Brother Croatia' holds the record for having the most regular seasons (five) with only male contestants winning the show each year (although the celebrity edition was won by a woman). Daca from season 2 and Maja Paola from season 4 came very close though, losing by only 2% difference to the eventual winners Hamdija and Vedran, respectively.
In 2008, RTL televizija broadcast a special celebrity season of Big Brother. Celebrities entered the house for charity. However, due to low ratings, the celebrity season was ended one week before it planned.