Ant and Dec host the second of the live semi-finals, in which another nine acts compete to impress the judges and secure the all-important viewers' vote in a bid to win one of the two places in Saturday's final. Tonight's winners will find themselves one step closer to an appearance at the Royal Variety Performance and a cash prize of £500,000. After Corrie (its new home is at 9pm all this week), we have the results show - and a performance 'by a special guest.'