Doctor Who: Before the Flood, which finished with an official rating of 6.05 million viewers, has been confirmed as the 21st most watched programme of the week.
Consolidated figures give the episode a share of 26.7% of the total TV audience.
The rating issued by the Broadcasters' Audience Research Board, or BARB, includes all those who watched the programme within one week of transmission. It does not include those watching online via iPlayer
This year Barb is reporting, for the first time, a 28 day figure, which gives an indication of how many watch the programme within four weeks of the original transmission. Data for the first episode of the series, The Magician's Apprentice, gave the episode a 28 day rating of 6.84 million viewers, 300,000 more than the initial 7 day figure.