[Johnr]

The reveal of 'X' a few years ago was perhaps up there with one of the best BGT moments ever

The reveal of Noodle...err not so much (and obviously the producers didn't expect him to progress any further by doing the reveal in the semi final, not sure exactly what he would have then done in the final!)...if they wanted to promote the act behind it all why not just invite the act to perform during the results interval!

Also it becomes annoying when Simon Cowell obviously isn't paying attention to 90% of what is going on during these live shows