Saturday’s finale episode of Doctor Who, Hell Bent, had an Appreciation Index score of 82.
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.
Hell Bent‘s AI of 82 puts it towards the higher end of scores achieved during Series 9, sharing a score with The Girl Who Died and The Zygon Invasion.
The complete AI scores for Series 9 are as follows:
The Magician’s Apprentice, Under the Lake, The Zygon Inversion & Face The Raven – 84
The Witch’s Familiar & Before the Flood – 83
The Girl Who Died, The Zygon Invasion & Hell Bent – 82
The Woman Who Lived – 81
Sleep No More – 78