WARNING: Embargoed for publication until 00:00:01 on 11/04/2017 - Programme Name: Doctor Who S10 - TX: 15/04/2017 - Episode: n/a (No. 1) - Picture Shows: ***EMBARGOED UNTIL 00:01hrs 11th APRIL 2017*** Doctor Who (PETER CAPALDI) - (C) BBC - Photographer: Simon Ridgway