The Crimson Horror achieved an overnight audience of 4.61 million viewers, a share of 25.2% of the total TV audience.
The top spots of the day remain consistent, with Doctor Who beaten by the usual suspects for the evening. The highest-rated show continues to be Britain's Got Talent on ITV, with 9.52m (10.13m with +1) watching, capturing a 45.0%(47.8%) share of the audience. The BBC's talent show, The Voice, was watched by 7.99 million (35.3% share). Casualty swapped places with Doctor Who this week to become third, with 4.96m watching (23.9% share).
Final ratings will be released next week, which normally sees a substantial increase in Doctor Who's audience once those who timeshift the programme are factored in.