The Magician's Apprentice - Overnight Ratings
Sunday, 20 September 2015 - Reported by Marcus
Doctor Who was the highest rated show on BBC One for the day, just above Casualty, which had 4.34 million watching. The day was won by The X Factor which had an audience of 7.33 million.
Last year's series opener, Deep Breath, Peter Capalidi's first story, had an overnight audience of 6.8 million.
A final figure, including those who record the programme and watch it later, will be released next week, and is likely to show a substantial increase on the initial figure.