▁substantial ly ▁less ▁valuable ▁" boot " ▁prize . ▁Cont est ants ▁are ▁entitled ▁to ▁two ▁" Sh out ▁Out s ", ▁one ▁ 3 0 ▁second ▁phone ▁call ▁to ▁a ▁friend ▁on ▁the ▁phone ▁( a ▁" Mobile ▁Sh out - Out ") ▁or ▁to ▁ask ▁a ▁passer - by ▁off ▁the ▁street ▁( a ▁" St reet ▁Sh out - Out ") ▁that ▁they ▁are ▁trav elling ▁on . ▁When ▁contest ants ▁reach ▁their ▁destination , ▁they ▁are ▁asked ▁if ▁they ▁want ▁to ▁" Double ▁or ▁Nothing " ▁in ▁which ▁they ▁can ▁choose ▁to ▁walk ▁away ▁with ▁what ▁c ash ▁they ▁have ▁won , ▁or ▁to ▁sit ▁and ▁watch ▁a ▁video ▁clip ▁and ▁be ▁asked ▁an ▁observation - based ▁question . ▁If ▁they ▁answer ▁correctly , ▁they ▁walk ▁away ▁with ▁double ▁the ▁w inn ings ▁of ▁the ▁trip . ▁If ▁they ▁get ▁it ▁wrong , ▁they ▁walk ▁away ▁with ▁nothing . ▁ ▁Category : Mus ical ▁game ▁shows ▁Category : C ash ▁Cab ▁Category : 2 0 0 0 s ▁Australian ▁game ▁shows ▁Category : 2 0 1 0 s ▁Australian ▁game ▁shows ▁Category : 2 0 0 7 ▁Australian ▁television ▁series ▁deb uts ▁Category : 2 0 1 4 ▁Australian ▁television ▁series ▁end ings ▁Category : English - language ▁television ▁programs ▁Category : T ele vision ▁shows ▁set ▁in ▁Gold ▁Coast <0x0A> </s> ▁Sh ay kh ▁' Ab d ▁al - G h ani ▁ibn ▁Is ma ′ il ▁al - N ab ul si ▁( an - N ab