The Up Series is a series of documentary films produced by Granada Television that have followed the lives of fourteen British children since 1964, when they were seven years old. So far the documentary has had eight episodes spanning 49 years and the documentary has been broadcast on both ITV and BBC. In a 2005 Channel 4 programme, the series topped the list of The 50 Greatest Documentaries. The children were selected to represent the range of socio-economic backgrounds in Britain at that time, with the explicit assumption that each child's social class predetermines their future. Every seven years, the director, Michael Apted, films material from those of the fourteen who choose to participate. The aim of the series is stated at the beginning of 7 Up as: "Why do we bring these children together? Because we want to get a glimpse of England in the year 2000. The shop steward and the executive of the year 2000 are now seven years old." 56 Up premiered on British TV on 14 May 2012; its release in the USA came on 4 January 2013.