The original judging panel consisted of Simon Cowell, Sharon Osbourne, Brian Friedman and Minogue.Friedman left the panel and was replaced by former judge Louis Walsh.Here the acts were further reduced to six in each category – a total of 24 acts.
Shephard was reportedly not happy that O'Leary was given the role as presenter of the main show instead of him.
An X Factor insider said: "Ben had a big chance of being the main presenter on X Factor until he did Soapstar Superstar last year on ITV1.
Episode 7 showed the first round at the Heythrop Park Hotel in Oxfordshire, where the acts were whittled down to 12 in each category (48 acts in total).
The next episode, showing the second round at the Apollo Theatre in London, was screened a few hours later.
Dermot O'Leary presented for the first time, replacing Kate Thornton, who had been presenting the show since series 1 in 2004.
Fearne Cotton replaced Ben Shephard as presenter on the spin-off show The Xtra Factor.
This series saw all four judges work together at the bootcamp, rather than disband to manage their own categories as happened in previous series.
Bootcamp was broadcast over a two-part show on Saturday 29 September.
He didn't impress some of the X Factor bosses on that live show and moved down the pecking order." Cowell said: "I wish Ben good luck.
He has done a great job on The Xtra Factor." in the cities of London (Wembley Stadium, 4–7 June), Manchester (25–28 June), Belfast (6 July), Cardiff (Angel Hotel, Cardiff, 10–11 July), Sheffield (Sheffield City Hall, 15 July), Birmingham (The ICC, 18–20 July) and Glasgow (Crowne Plaza Glasgow).
With Dannii busting out her coordinated moves, Shaynna decided freestyle was more her thing.'I'm pissing myself laughing looking at how SOME adults just dont change....