▁pair ▁of ▁contest ants ▁answering ▁questions ▁to ▁qual ify ▁to ▁go ▁on ▁a ▁tre asure ▁h unt ▁that ▁involved ▁choosing ▁from ▁among ▁thirty ▁tre asure ▁ch ests ▁that ▁included ▁anything ▁from ▁g ag ▁pri zes ▁to ▁valuable ▁mer ch and ise ▁and / or ▁c ash . ▁The ▁show ▁also ▁offered ▁home ▁view ers ▁a ▁chance ▁of ▁a ▁tre asure ▁h unt , ▁when ▁a ▁post card ▁was ▁chosen ▁from ▁a ▁large ▁drum ▁by ▁a ▁young ▁guest ▁who ▁revol ved ▁the ▁drum ▁several ▁times ▁to ▁random ise ▁the ▁entries . ▁The ▁show ▁a ired ▁daily ▁in ▁the ▁morning ▁and ▁once ▁a ▁week ▁in ▁the ▁evening ▁until ▁ 1 9 5 9 , ▁when ▁the ▁networks ▁began ▁cancel ing ▁game ▁shows ▁in ▁the ▁w ake ▁of ▁the ▁qu iz ▁show ▁sc andal . ▁ ▁In ▁ 2 0 1 2 , ▁the ▁Gu in ness ▁World ▁Records ▁title ▁for ▁' most ▁participants ▁in ▁a ▁tre asure ▁h unt ▁game ' ▁was ▁set ▁by ▁Team ▁London ▁Amb ass adors , ▁who ▁broke ▁the ▁previous ▁record ▁( of ▁ 3 0 8 ▁participants ) ▁in ▁London . ▁ 4 6 6 ▁Part icip ants , ▁all ▁London ▁Amb ass adors ▁for ▁the ▁Olympic ▁and ▁Par al ym pic ▁Games , ▁worked ▁in ▁ 9 3 ▁teams ▁of ▁five , ▁each ▁comple ting ▁a ▁set ▁of ▁twelve ▁cl ues ▁hidden ▁on ▁either ▁side ▁of ▁the ▁River ▁Th ames , ▁starting ▁and ▁finishing ▁at ▁City ▁Hall , ▁London . ▁The ▁tre asure ▁h unt ▁in ▁the ▁form ▁of