Doctor Who: Before the Flood had an Audience Appreciation or AI score of 83.
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.
With Sunday's overnight viewing figures now available, Doctor Who finished as the 39th most watched programme of the week. Consolidated figures will be published next week.