 In some countries, the prize money normally awarded to the winning housemate is donated to a charity, and all celebrities are paid to appear in the show as long as they do not voluntarily leave before their eviction or the end of the series.The rest of the rules are nearly the same as those of the original version.The celebrity version has become particularly popular in the UK, causing UK broadcaster Channel 5 to extend its deal with Endemol enabling them to air two celebrity series in addition to the civilian version every year from 2012.