Sezon 4
Bölümler
1 Auditions 1: Melbourne, Hobart & Alice Springs 6 Ağu 2006 2 Auditions 2: Perth & Adelaide 7 Ağu 2006 3 Auditions 3: Sydney & Townsville 13 Ağu 2006 4 Auditions 4: Queensland & Albury Wodonga 14 Ağu 2006 5 Top 125 20 Ağu 2006 6 Top 24 21 Ağu 2006 7 Semi Finals: Group 1 Perfom 27 Ağu 2006 8 Semi Finals: Group 1 Verdict & Group 2 Perform 28 Ağu 2006 9 Semi Finals: Group 2 Verdict & Group 3 Perform 29 Ağu 2006 10 Semi Finals: Group 3 Verdict & Group 4 Perform 30 Ağu 2006 11 Semi Finals: Group 4 Verdict 31 Ağu 2006 12 Wildcard: Performance 3 Eyl 2006 13 Wildcard: Verdict 4 Eyl 2006 14 Final 12: Contestant's Choice 10 Eyl 2006 15 Final 12: Verdict 11 Eyl 2006 16 Final 11: Rock 17 Eyl 2006 17 Final 11: Verdict 18 Eyl 2006 18 Final 10: Number One Hits 24 Eyl 2005 19 Final 10: Verdict 25 Eyl 2006 20 Final 9: The Year I Was Born 1 Eki 2006 21 Final 9: Verdict 2 Eki 2006 22 Final 8: Disco 8 Eki 2006 23 Final 8: Verdict 9 Eki 2006 24 Final 7: Acoustic/Contestant's Choice 15 Eki 2006 25 Final 7: Verdict 16 Eki 2006 26 Up Close And Personal: Originals 17 Eki 2006 27 Final 6: Big Band/Rock Swings 22 Eki 2006 28 Final 6: Verdict 23 Eki 2006 29 Final 5: ARIA Hall Of Fame 29 Eki 2006 30 Final 5: Verdict 30 Eki 2006 31 Final 4: Audience Choice 5 Kas 2006 32 Final 4: Verdict 6 Kas 2006 33 Final 3: Judge's Choice 12 Kas 2006 34 Final 3: Verdict 13 Kas 2006 35 Grand Final: Performances 19 Kas 2006 36 Grand Final: Verdict 26 Kas 2006