WARNING: Embargoed for publication until 00:00:01 on 14/03/2017 - Programme Name: Doctor Who S10 - TX: 15/04/2017 - Episode: n/a (No. 1) - Picture Shows: ***EMBARGOED UNTIL 00:01hrs 15th MARCH 2017*** Doctor Who (PETER CAPALDI), Bill (PEARL MACKIE) - (C) BBC - Photographer: Simon Ridgway