Laura Carmichael and Jessica Brown-Findlay, better known as Lady Edith and Lady Sybil, were out schmoozing with all the other TV superstars at last night’s Radio Times Covers Party – so naturally we collared them for a chat.

Downton Abbey series three starts filming in a few weeks’ time - as usual, Julian Fellowes is keeping his cast in the dark about the new storylines. But Carmichael and Brown-Findlay have tried on their new, 1920s costumes…