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Doctor Who: The Return of Doctor Mysterio – Appreciation Index Score

This year’s Christmas Special, The Return of Doctor Mysterio, had an Appreciation Index (AI) 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.

The episode’s AI of 82 is identical to the last two Christmas Specials, and lines up roughly with the average scores that Series 9 achieved. This is how it compares to the rest of Series 9:

The Magician’s Apprentice, Under the Lake, The Zygon Inversion & Face The Raven84
The Witch’s Familiar & Before the Flood83
The Girl Who Died, The Zygon Invasion, Hell Bent, The Husbands of River Song & The Return of Doctor Mysterio 82
The Woman Who Lived81
Heaven Sent80
Sleep No More78

[Source: Doctor Who News]