Season
- Season 0 1970-01-01
- Season 1 2004-09-04
- Season 2 2005-08-20
- Season 3 2006-08-19
- Season 4 2007-08-18
- Season 5 2008-08-16
- Season 6 2009-08-22
- Season 7 2010-08-21
- Season 8 2011-08-20
- Season 9 2012-08-18
- Season 10 2013-08-31
- Season 11 2014-08-30
- Season 12 2015-08-25
- Season 13 2016-08-27
- Season 14 2017-09-02
- Season 15 2018-08-31
Season 15 Episode
- Season 8 Auditions 1
- Season 8 Auditions 2
- Season 8 Auditions 3
- Season 8 Auditions 4
- Season 8 Auditions 5
- Season 8 Auditions 6
- Season 8 Auditions 7
- Season 8 Bootcamp 1
- Season 8 Bootcamp 2
- Season 8 Judges Houses 1
- Season 8 Judges Houses 2
- Season 8 Live Show 1
- Season 8 Live Show 1 Results
- Season 8 Live Show 2
- Season 8 Live Show 2 Results
- Season 8 Live Show 3
- Season 8 Live show 3 Results
- Season 8 Live Show 4
- Season 8 Live Show 4 Results
- Season 8 Live Show 5
- Season 8 Live Show 5 Results
- Season 8 Live Show 6
- Season 8 Live Show 6 Results
- Season 8 Live Show 7
- Season 8 Live Show 7 Results
- Season 8 Live Show 8
- Season 8 Live Show 8 Results
- Season 8 Semi-Final
- Season 8 Semi-Final Results
- Season 8 Final
- Season 8 Final Results
The X Factor - Season 8 Episode 28 Semi-Final
5.10 48 minutes Dermot O'Leary hosts the semi-finals. The four remaining act must perform two songs each, and it will be up to them to really sing their hearts out if they are to be in with a chance of making it to next week's final.
