This week Ant and Dec are joined live by Terry Wogan, who will be lending his unique voice to the Star Guest Announcer booth.The lads trick the biggest pop group on the planet, One Direction, in Undercover.Little Ant and Dec report back from the Britain's Got Talent auditions.Lucky viewers are given the chance to win a holiday to Las Vegas courtesy of The Super Computer, and live game Vegas or Bust.The Big Reunion bands Blue, 5ive and Atomic Kitten perform an exclusive medley, in the End of the Show Show.And of course, one lucky member of the studio audience will be playing to win the contents of a commercial break on the only show on telly that says ‘Don't just watch the ads – win them!'