Doctor Who: Arachnids In The UK had an official rating of 8.22 million viewers, according to figures released by the Broadcasting Research Audience Board, BARB.
7.97 million watched the episode on a conventional TV set. However the BARB 4-Screen Dashboard shows that an additional 131,000 watched on their PC, 62,000 watched on a Tablet device and 51,000 watched on a smartphone These figures make Doctor Who the 4th most watched programme of the week ending 28th October.
Top for the week were the two editions of Strictly Come Dancing, with the Saturday show getting 11.47 million watching. Channel 4 once more took number 3 with The Great British Bake Off getting 9.50 million viewers.
On ITV Coronation Street managed to get 7.86 million watching and was fifth in the weekly chart.
Arachnids In The UK had an Appreciation Index score of 83.