BGT semi-finals which usually would have aired live in May.But due to lockdown, only the audition stages aired and the ITV show has been waiting to come back for the final stages.The semi-finals will take place over five Saturday's, in a break from the usual five nights in a row tradition, before a live final in October.As usual, Ant and Dec will host the shows which start on Saturday September 5 at 8pm whilst Amanda Holden, Alesha Dixon and David Walliams.However, viewers will notice the