It’s 12 February 2013, a hectic day at TV Centre, and it’s looking touch and go whether there’ll be time for RT’s interview Jessica Raine. I’m twiddling my thumbs in one of a suite of rooms on the fifth floor, which the Adventure in Space and Time team have re-dressed to suggest 1960s production and design offices. Then suddenly, there she is, walking in, radiant and chic, her hair freshly coiffed, in character as Doctor Who’s original producer Verity Lambert. Before we start, Jessica notices my copy of that week’s Radio Times – she’s on the cover for the latest series of Call the Midwife. “Oh my God. Oh I wanna read it now. We can’t do the interview!” she jokes….