S5 E110 • The Auditions: Part 1

Première diffusion : 16 août 2008

S5 E110 • The Auditions: Part 2

Première diffusion : 23 août 2008

S5 E111 • The Auditions: Part 3

Première diffusion : 30 août 2008

S5 E112 • The Auditions: Part 4

Première diffusion : 6 septembre 2008

S5 E113 • The Auditions: Part 5

Première diffusion : 13 septembre 2008

S5 E114 • The Auditions: Part 6

Première diffusion : 20 septembre 2008

S5 E115 • The Bootcamp: Part 1

Première diffusion : 27 septembre 2008

S5 E116 • The Bootcamp: Part 2

Première diffusion : 28 septembre 2008

S5 E117 • Judges' Houses: Part 1

Première diffusion : 4 octobre 2008

S5 E118 • Judges' Houses: Part 2

Première diffusion : 5 octobre 2008

S5 E119 • Live Show: Week 1

Première diffusion : 11 octobre 2008

S5 E120 • Live Results: Week 1

Première diffusion : 11 octobre 2008

S5 E121 • Live Show: Week 2

Première diffusion : 18 octobre 2008

S5 E122 • Live Results: Week 2

Première diffusion : 18 octobre 2008

S5 E123 • Live Show: Week 3

The 10 remaining acts return to perform live for the third time. This week each act has to perform a Big Band song. The judges give their verdicts on what they have heard. At the end of the show the phone lines are opened for this week's public vote.

Première diffusion : 25 octobre 2008

S5 E124 • Live Results: Week 3

The finalists performed a cover version of the Mariah Carey song "Hero" on behalf of the Help for Heroes charity. This song will be released as a download on Sunday 26 as a download and Monday 27 physically.

Première diffusion : 25 octobre 2008

S5 E125 • Live Show: Week 4

Down to nine acts and the contestants must sing again for a place in next week's show. This week they must sing classic disco songs for the judges and the viewers at home. The viewers will then vote for their favourite and the two acts with the lowest number of votes will be forced to sing again for the judges who will then decide to save one act.

Première diffusion : 1 novembre 2008

S5 E126 • Live Results: Week 4

Theme: Disco Celebrity Guest: Will Young Song performed by celebrity guest: Changes

Première diffusion : 1 novembre 2008

S5 E127 • Live Show: Week 5

Dermot O'Leary hosts the fifth live show of the series. This week, the eight remaining acts meet Mariah Carey and must perform her songs for the judges and the viewers. The viewers will then vote for their favourite and the two acts with the lowest number of votes will sing again for the judges who will choose to save one act and send the other home.

Première diffusion : 8 novembre 2008

S5 E128 • Live Results: Week 5

Theme: Mariah Carey Celebrity Guest: Mariah Carey Song performed by celebrity guest: TBA

Première diffusion : 8 novembre 2008

S5 E129 • Live Show: Week 6

Theme: Best of British

Première diffusion : 15 novembre 2008

S5 E130 • Live Results: Week 6

Celebrity Guest: Leona Lewis Song performed by celebrity guest: "Run"

Première diffusion : 15 novembre 2008

S5 E131 • Live Show: Week 7

Première diffusion : 22 novembre 2008

S5 E132 • Live Results: Week 7

Première diffusion : 22 novembre 2008

S5 E133 • Live Show: Quarter-final

Five acts remain in the competition and the acts must now perform 2 songs each. This week the theme is American Classics as the contestants perform for the viewers' votes. The two acts with the lowest number of votes must then sing again for the judges Simon Cowell, Louis Walsh, Cheryl Cole and Dannii Minogue. Hannah Montana star Miley Cyrus appears in this episode.

Première diffusion : 29 novembre 2008

S5 E134 • Live Results: Quarter-final

Theme: Songs by Britney Spears and American Classics Song performed by celebrity guests: "Womanizer" (Britney Spears), "7 Things" (Miley Cyrus)

Première diffusion : 29 novembre 2008

S5 E135 • Live Show: Semifinal

With only four acts remaining in the competition, we reach the 9th live show of the series. The contestants must each perform 2 songs for the viewers' votes. The 2 acts with the lowest number of votes will have to sing again judges Simon Cowell, Louis Walsh, Cheryl Cole and Dannii Minogue who, for the last time, will choose an act to send home.

Première diffusion : 6 décembre 2008

S5 E136 • Live Results: Semifinal

Première diffusion : 6 décembre 2008

S5 E137 • Live Show: The Final

There are only three acts remaining in this week's grand final. After auditions, boot camp, the mentors' houses and nine live shows, the three acts remaining in the competition sing for one last time for the audience vote. The act with the highest number of votes will be crowned The X Factor champion of 2008 winning a £1m recording contract with Simon Cowell. Dannii Minogue is the only judge with no acts left in the competition.

Première diffusion : 13 décembre 2008

S5 E138 • Live Results: The Winner

Première diffusion : 13 décembre 2008