Episode Four of Torchwood: Miracle Day, Escape to L.A., had a final official rating of 5.19 million viewers according to figures released by BARB.
The programme was the 10th highest rated on BBC One for the week. The final result includes those who recorded the programme and watched it within 7 days. It does not include those watching on iPlayer.
Episode Five, The Categories of Life, had an AI score of 85.