On the 29th of April the world will be on the edge of its collective sofa  watching HRH Prince William tie the knot with Kate Middleton. In this six part series we’re giving America the inside track on the couple and their Big Day - from the fledgling royal romance at St Andrews, to the design of the dress and the guest list no nuptial detail will go unchecked. To help us celebrate this decade defining event we have some the biggest names in the world of Royal Watching onboard – fashion designer Ben De Lisi, Elizabeth Emmanel designer of Diana’s wedding dress, former Sunday Times Editor Andrew Neil, Ingrid Seward editor of Majesty magazine, Ken Wharfe  Royal Protection officer to Diana and Dickie Arbiter, former press spokesman to the Queen.