# List of The X Factor (British TV series) episodes

The X Factor is a British reality television music competition since 2004, created by Simon Cowell.

## Series 1

| Episode | Air date | Official ITV1 rating (millions) | Weekly rank (millions) |
| Auditions 1 | 4 September | 5.25 | 21 |
| Auditions 2 | 11 September | 6.53 | 17 |
| Auditions 3 | 18 September | 7.08 | 14 |
| Auditions 4 | 25 September | 7.24 | 16 |
| Auditions 5 | 2 October | 6.71 | 18 |
| Bootcamp 1 | 9 October | 6.69 | 21 |
| Bootcamp 2 | 9 October | 7.89 | 17 |
| Judges' houses | 16 October | 7.32 | 17 |
| Live show 1 | 23 October | 7.18 | 17 |
| Live results 1 | 23 October | 7.83 | 15 |
| Live show 2 | 30 October | 6.53 | 20 |
| Live results 2 | 30 October | 7.26 | 17 |
| Live show 3 | 6 November | 6.89 | 19 |
| Live results 3 | 6 November | 7.02 | 18 |
| Live show 4 | 13 November | 7.42 | 15 |
| Live results 4 | 13 November | 6.88 | 18 |
| Live show 5 | 20 November | 7.91 | 16 |
| Live results 5 | 20 November | 7.98 | 14 |
| Live show 6 | 27 November | 8.06 | 22 |
| Live results 6 | 27 November | 8.01 | 23 |
| Live semi-final | 4 December | 7.79 | 20 |
| Live results 7 | 4 December | 7.52 | 23 |
| Final | 11 December | 8.62 | 15 |
| Final results | 11 December | 9.96 | 8 |

## Series 2

| Episode | Air date | Official ITV1 rating | Weekly rank |
| Auditions 1 | 20 August | 6.72 | 13 |
| Auditions 2 | 27 August | 7.48 | 10 |
| Auditions 3 | 3 September | 7.75 | 9 |
| Auditions 4 | 10 September | 7.29 | 12 |
| Auditions 5 | 17 September | 9.79 | 5 |
| Auditions 6 | 24 September | 10.04 | 8 |
| Bootcamp 1 | 1 October | 8.93 | 9 |
| Bootcamp 2 | 1 October | 8.96 | 8 |
| Judges' houses 1 | 8 October | 9.09 | 10 |
| Judges' houses 2 | 8 October | 9.96 | 7 |
| Live show 1 | 15 October | 7.87 | 14 |
| Live results 1 | 15 October | 8.96 | 11 |
| Live show 2 | 22 October | 8.47 | 12 |
| Live results 2 | 22 October | 9.02 | 8 |
| Live show 3 | 29 October | 8.60 | 9 |
| Live results 3 | 29 October | 9.52 | 6 |
| Live show 4 | 5 November | 7.76 | 13 |
| Live results 4 | 5 November | 7.51 | 14 |
| Live show 5 | 12 November | 9.09 | 10 |
| Live results 5 | 12 November | 8.99 | 12 |
| Live show 6 | 19 November | 8.95 | 12 |
| Live results 6 | 19 November | 8.76 | 13 |
| Live show 7 | 26 November | 8.45 | 21 |
| Live results 7 | 26 November | 9.13 | 14 |
| Live show 8 | 3 December | 10.00 | 9 |
| Live results 8 | 3 December | 8.95 | 18 |
| Live show 9 | 10 December | 7.80 | 16 |
| Live results 9 | 10 December | 8.48 | 14 |
| Live final | 17 December | 9.65 | 7 |
| Live final results | 17 December | 9.90 | 6 |

## Series 3

| Episode | Air date | Official ITV1 rating | Weekly rank |
| Auditions 1 | 19 August | 7.45 | 7 |
| Auditions 2 | 26 August | 7.36 | 10 |
| Auditions 3 | 2 September | 9.08 | 5 |
| Auditions 4 | 9 September | 7.96 | 7 |
| Auditions 5 | 16 September | 7.53 | 8 |
| Auditions 6 | 23 September | 9.17 | 6 |
| Bootcamp 1 | 30 September | 6.39 | 16 |
| Bootcamp 2 | 30 September | 8.76 | 7 |
| Judges' houses 1 | 7 October | 6.77 | 14 |
| Judges' houses 2 | 7 October | 8.95 | 6 |
| Live show 1 | 14 October | 7.52 | 12 |
| Results 1 | 14 October | 7.38 | 13 |
| Live show 2 | 21 October | 7.54 | 14 |
| Results 2 | 21 October | 7.70 | 13 |
| Live show 3 | 28 October | 7.10 | 14 |
| Results 3 | 28 October | 7.52 | 12 |
| Live show 4 | 4 November | 7.30 | 14 |
| Results 4 | 4 November | 7.91 | 13 |
| Live show 5 | 11 November | 9.83 | 6 |
| Results 5 | 11 November | 8.24 | 12 |
| Live show 6 | 18 November | 9.22 | 7 |
| Results 6 | 18 November | 8.80 | 9 |
| Live show 7 | 25 November | 8.46 | 11 |
| Results 7 | 25 November | 8.69 | 9 |
| Live show 8 | 2 December | 9.31 | 8 |
| Results 8 | 2 December | 8.24 | 13 |
| Live show 9 | 9 December | 8.39 | 7 |
| Results 9 | 9 December | 8.25 | 10 |
| Live final | 16 December | 10.52 | 4 |
| Live final results | 16 December | 10.78 | 3 |

## Series 4

| Episode | Air date | Official ITV1 rating | Weekly rank |
| Auditions 1 | 18 August | 9.78 | 1 |
| Auditions 2 | 25 August | 8.88 | 3 |
| Auditions 3 | 1 September | 9.23 | 1 |
| Auditions 4 | 8 September | 8.76 | 4 |
| Auditions 5 | 15 September | 7.23 | 5 |
| Auditions 6 | 22 September | 8.34 | 5 |
| Bootcamp 1 | 29 September | 6.42 | 14 |
| Bootcamp 2 | 29 September | 7.12 | 10 |
| Judges' houses 1 | 6 October | 8.08 | 7 |
| Judges' houses 2 | 7 October | 7.92 | 8 |
| Live show 1 | 20 October | 6.60 | 17 |
| Live results 1 | 20 October | 7.02 | 14 |
| Live show 2 | 27 October | 7.51 | 13 |
| Live results 2 | 27 October | 7.51 | 12 |
| Live show 3 | 3 November | 8.47 | 8 |
| Live results 3 | 3 November | 6.99 | 13 |
| Live show 4 | 10 November | 9.18 | 7 |
| Live results 4 | 10 November | 8.59 | 8 |
| Live show 5 | 17 November | 9.15 | 7 |
| Live results 5 | 17 November | 8.05 | 9 |
| Live show 6 | 24 November | 9.30 | 6 |
| Live results 6 | 24 November | 8.88 | 7 |
| Live show 7 | 1 December | 9.56 | 6 |
| Live results 7 | 1 December | 7.82 | 13 |
| Live semi-final | 8 December | 9.83 | 6 |
| Live semi-final results | 8 December | 9.62 | 7 |
| Live final | 15 December | 11.78 | 2 |
| Live final results | 15 December | 12.23 | 1 |

## Series 5

| Episode | Air date | Official ITV1 rating | Weekly rank | Share |
| Auditions 1 | 16 August | 10.78 | 1 | 48.2% |
| Auditions 2 | 23 August | 10.10 | 1 | 45.4% |
| Auditions 3 | 30 August | 8.80 | 2 | 43.5% |
| Auditions 4 | 6 September | 9.57 | 1 | 42.8% |
| Auditions 5 | 13 September | 9.96 | 1 | 43.2% |
| Auditions 6 | 20 September | 10.01 | 1 | 41.7% |
| Bootcamp 1 | 27 September | 8.94 | 4 | 36.0% |
| Bootcamp 2 | 28 September | 9.47 | 1 | 38.1% |
| Judges' houses 1 | 4 October | 10.84 | 1 | 40.5% |
| Judges' houses 2 | 5 October | 10.11 | 3 | 42.7% |
| Live show 1 | 11 October | 11.09 | 1 | 44.1% |
| Results 1 | 11 October | 9.05 | 7 | 40.8% |
| Live show 2 | 18 October | 10.21 | 3 | 38.5% |
| Results 2 | 18 October | 9.13 | 9 | 39.7% |
| Live show 3 | 25 October | 10.37 | 2 | 39.7% |
| Results 3 | 25 October | 8.89 | 10 | 38.0% |
| Live show 4 | 1 November | 11.65 | 1 | 43.3% |
| Results 4 | 1 November | 9.72 | 6 | 37.6% |
| Live show 5 | 8 November | 10.72 | 2 | 42.6% |
| Results 5 | 8 November | 9.46 | 7 | 35.6% |
| Live show 6 | 15 November | 11.28 | 1 | 43.5% |
| Results 6 | 15 November | 10.62 | 2 | 42.9% |
| Live show 7 | 22 November | 11.77 | 1 | 43.2% |
| Results 7 | 22 November | 9.98 | 6 | 41.1% |
| Live show 8 | 29 November | 12.67 | 1 | 46.0% |
| Results 8 | 29 November | 11.41 | 2 | 50.0% |
| Semi-final | 6 December | 10.30 | 3 | 39.1% |
| Semi-final results | 6 December | 10.60 | 2 | 39.6% |
| Final performances | 13 December | 13.77 | 2 | 50.3% |
| Final results | 13 December | 14.06 | 1 | 54.4% |
| Series average | 2008 | 10.51 | N/A | 42.4% |

## Series 6

| Episode | Air date | Official ITV rating | Weekly rank | Share |
| Auditions 1 | 22 August | 11.00 | 1 | 47.9% |
| Auditions 2 | 29 August | 10.81 | 1 | 47.1% |
| Auditions 3 | 5 September | 12.84 | 1 | 51.9% |
| Auditions 4 | 12 September | 11.31 | 1 | 51.7% |
| Auditions 5 | 19 September | 10.57 | 2 | 38.0% |
| Auditions 6 | 20 September | 11.37 | 1 | 41.4% |
| Bootcamp 1 | 26 September | 10.39 | 2 | 36.6% |
| Bootcamp 2 | 27 September | 11.86 | 1 | 42.5% |
| Judges' houses 1 | 3 October | 11.46 | 2 | 38.9% |
| Judges' houses 2 | 4 October | 13.35 | 1 | 44.9% |
| Live show 1 | 10 October | 12.64 | 2 | 43.8% |
| Results show 1 | 11 October | 13.82 | 1 | 46.4% |
| Live show 2 | 17 October | 12.07 | 2 | 42.1% |
| Results show 2 | 18 October | 13.89 | 1 | 46.7% |
| Live show 3 | 24 October | 12.80 | 2 | 44.1% |
| Results show 3 | 25 October | 14.02 | 1 | 47.9% |
| Live show 4 | 31 October | 11.74 | 2 | 42.3% |
| Results show 4 | 1 November | 14.52 | 1 | 47.8% |
| Live show 5 | 7 November | 13.05 | 2 | 46.9% |
| Results show 5 | 8 November | 15.00 | 1 | 49.4% |
| Live show 6 | 14 November | 13.45 | 2 | 45.1% |
| Results show 6 | 15 November | 15.02 | 1 | 47.9% |
| Live show 7 | 21 November | 14.03 | 2 | 48.6% |
| Results show 7 | 22 November | 14.51 | 1 | 46.5% |
| Live show 8 | 28 November | 13.46 | 2 | 47.8% |
| Results 8 | 29 November | 14.34 | 1 | 45.9% |
| Live semi-final | 5 December | 13.40 | 2 | 49.5% |
| Live semi-final results | 6 December | 13.55 | 1 | 46.2% |
| Top 3 | 12 December | 13.34 | 2 | 48.0% |
| Top 2 | 13 December | 16.28 | 1 | 53.2% |
| Series average | 2009 | 13.00 | N/A | 45.9% |

## Series 7

| Episode | Date | Official ITV1 rating (millions) | Weekly rank | Share (%) | Official ITV1 HD rating (millions) | Total viewers (millions) |
| Auditions 1 | 21 August | 11.88 | 1 | 48.6 | 0.57 | 12.45 |
| Auditions 2 | 28 August | 10.81 | 1 | 44.9 | 0.55 | 11.36 |
| Auditions 3 | 4 September | 11.69 | 1 | 49.2 | 0.64 | 12.33 |
| Auditions 4 | 11 September | 11.78 | 1 | 45.0 | 0.56 | 12.34 |
| Auditions 5 | 18 September | 11.65 | 2 | 46.0 | 0.68 | 12.33 |
| Auditions 6 | 19 September | 12.15 | 1 | 42.8 | 0.71 | 12.86 |
| Bootcamp 1 | 25 September | 12.07 | 2 | 46.4 | 0.71 | 12.78 |
| Bootcamp 2 | 26 September | 13.26 | 1 | 44.4 | 0.82 | 14.08 |
| Judges' houses 1 | 2 October | 12.68 | 2 | 47.3 | 0.82 | 13.50 |
| Judges' houses 2 | 3 October | 14.51 | 1 | 48.5 | 0.90 | 15.41 |
| Live show 1 | 9 October | 12.62 | 2 | 48.5 | 0.91 | 13.53 |
| Results 1 | 10 October | 13.17 | 1 | 46.3 | 0.90 | 14.07 |
| Live show 2 | 16 October | 12.14 | 2 | 47.2 | 0.97 | 13.11 |
| Results 2 | 17 October | 13.42 | 1 | 46.7 | 0.90 | 14.32 |
| Live show 3 | 23 October | 12.39 | 2 | 47.5 | 0.95 | 13.34 |
| Results 3 | 24 October | 13.73 | 1 | 47.7 | 0.95 | 14.68 |
| Live show 4 | 30 October | 12.69 | 2 | 47.1 | 0.81 | 13.50 |
| Results 4 | 31 October | 13.74 | 1 | 47.5 | 0.93 | 14.67 |
| Live show 5 | 6 November | 12.50 | 2 | 47.7 | 1.11 | 13.61 |
| Results 5 | 7 November | 14.29 | 1 | 49.7 | 1.07 | 15.36 |
| Live show 6 | 13 November | 13.61 | 2 | 49.9 | 0.99 | 14.60 |
| Results 6 | 14 November | 14.69 | 1 | 47.7 | 1.06 | 15.75 |
| Live show 7 | 20 November | 13.28 | 2 | 48.7 | 1.13 | 14.41 |
| Results 7 | 21 November | 15.04 | 1 | 50.0 | 1.09 | 16.13 |
| Live show 8 | 27 November | 13.57 | 2 | 49.0 | 1.09 | 14.66 |
| Results 8 | 28 November | 14.42 | 1 | 48.7 | 1.05 | 15.47 |
| Live show 9 | 4 December | 13.73 | 2 | 48.4 | 1.22 | 14.95 |
| Results 9 | 5 December | 14.53 | 1 | 48.6 | 0.99 | 15.52 |
| Final part 1 | 11 December | 13.94 | 4 | 52.6 | 1.17 | 15.11 |
| Final part 2 | 12 December | 16.55 | 1 | 54.9 | 1.16 | 17.71 |
| Series average | 2010 | 13.22 | — | 47.9 | 0.85 | 14.13 |

## Series 15

audition 1(18 July)