The Appreciation Index or AI is a measure of how much the audience enjoyed the programme. The score, out of a hundred, is compiled by a specially selected panel of around 5,000 people who go online and rate and comment on programmes.
On Sunday, three programmes scored higher than Doctor Who, pushing the show into 23rd place for the week. Final figures and chart position will be released next week.
The score is relatively low for this series, but still a good score. The AI scores for all episodes this series are as follows:
Mummy on the Orient Express, Flatline & Dark Water - 85
Into The Dalek & Time Heist - 84
The Caretaker and In The Forest Of The Night, & Death in Heaven - 83
Deep Breath, Robots of Sherwood, Listen & Kill the Moon - 82
The Sunday repeat of Death in Heaven on BBC Three had an overnight estimate of 0.20 million viewers, a 0.8% share of the audience.