8 , 0 0 0 ▁dogs ▁take ▁part ▁in ▁Cru ft s ▁each ▁year , ▁with ▁an ▁estimated ▁ 1 6 0 , 0 0 0 ▁human ▁visitors ▁att ending ▁the ▁show . ▁ ▁Cru ft s ▁was ▁formerly ▁tele vised ▁by ▁the ▁BBC ; ▁this ▁ended ▁after ▁the ▁ 2 0 0 8 ▁event ▁( see ▁" C rit ic ism ") ▁and ▁the ▁ 2 0 0 9 ▁event ▁was ▁only ▁shown ▁via ▁the ▁Internet . ▁Since ▁ 2 0 1 0 ▁the ▁show ▁has ▁been ▁broadcast ▁on ▁the ▁commercial ▁channels ▁Channel ▁ 4 ▁and ▁More 4 , ▁attract ing ▁over ▁ 4 . 5 ▁million ▁view ers . ▁ ▁Comp eting ▁for ▁Best ▁in ▁Show ▁Cru ft s ▁is ▁not ▁an ▁open ▁competition ; ▁dogs ▁must ▁have ▁qualified ▁throughout ▁the ▁previous ▁year . ▁There ▁are ▁a ▁number ▁of ▁ways ▁of ▁qual ifying ▁for ▁the ▁bre ed ▁classes ▁at ▁Cru ft s , ▁but ▁most ▁dogs ▁typically ▁qual ify ▁by ▁obtain ing ▁first , ▁second ▁or ▁third ▁place ▁in ▁the ▁relevant ▁class ▁at ▁a ▁Kenn el ▁Club ▁affili ated ▁Championship ▁show ▁where ▁Challenge ▁Cert ific ates ▁are ▁awarded , ▁or ▁by ▁ach ieving ▁Best ▁in ▁Show , ▁Reserve ▁Best ▁in ▁Show ▁or ▁Best ▁Pu ppy ▁in ▁Show ▁at ▁a ▁Kenn el ▁Club ▁affili ated ▁Open ▁or ▁General ▁show . ▁D ogs ▁can ▁become ▁qualified ▁for ▁life ▁upon ▁att aining ▁their ▁Kenn el ▁Club ▁Stud ▁Book ▁Number . ▁ ▁D ogs ▁comp ete ▁in ▁hier arch ical ▁fashion . ▁D ogs ▁begin