This two-hour special takes a look back at the highs and lows of Britain's Got Talent, with footage of some of the more weird and wonderful acts to grace the BGT stage. Plus your most popular performances and the judges' top moments. If you prefer to live in the moment, there's brand new talent spotting in the form of So You Think You Can Dance from 6.30pm on BBC1. The remaining dancers try to impress at Choreography Camp, before judges Nigel Lythgoe, Arlene Phillips, Louise Redknapp and Sisco Gomez reveal the 20 acts they have chosen to go through to the live shows.