The ship in the opening titles is the Shaw, Savill & Albion Line liner in dry dock at the King George V Dock and the road is Saville Road, Silvertown, east London [REF].
On 11 February 2013, Ben Stephenson, BBC Controller for Drama, announced that he had commissioned a 2013 Christmas special, and a third series of eight episodes to air in 2014 [REF].