Named AB5, the projected new channel presented the agency with the chance to become the Belgian version of AB1, with a target market of 15/25 years old and showing a mix of manga and music.
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Although Claude Berda, head of AB Groupe, was still in conflict with the Audiovisual council over his non-cooperation with certain regulations with AB3 in 2001 and 2002, the members of the CSA awarded a 9 year licence to AB5 on 18 February 2005.
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It also allowed the channel to place itself directly after the three main channels of the RTBF, as the fourth francophone Belgian channel, in place of RTL-TVI, which returned to Luxembourg in 2005.
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In September 2006, the channel was officially launched under the name La Quatre and radically changed from the ideas underlying AB4 at its creation, so that it became a channel showing cult series from the 60s, 70s and 80s, and also classic films.