The God Complex - Appreciation Index

Doctor Who: The God Complex had an Appreciation Index, or AI score of 86.

The AI is a measure of how much the audience enjoyed the episode. The score puts the programme in the excellent category.

The latest figures, for the April to June quarter, show that the average AI for BBC One has risen to 82, the highest score in the channel's history.

The BBC collects appreciation index (AI) figures from an online panel of 19,000 adults, who are asked to score programmes they have watched or listened to out of 10. Responses are then averaged into a score out of 100.

The AIs for BBC One and BBC Two rose by a point each on the last quarter, to 82 and 84 respectively, while BBC Three, remained static on 84 and BBC Four dropped one point to 84.