Victory of the Daleks was watched by 6.2 million viewers, according to unofficial overnight figures.
With a share of 32.7% the rating is the second highest of the day. Britain's Got Talent stole the night with 10.6 million viewers and a 44% share of the audience. Doctor Who was still nearly a million viewers ahead of the third placed programme, the BBC News.
An additional 231,000 watched the later showing on BBC HD, although as the showing wasn't simulcast the figures won't be added together.
Doctor Who is currently sixteenth for the week, a position which should rise when the official ratings are released next week.
On BBC Three, Doctor Who Confidential was watched by 0.59 million with a share of 3.1%. An additional 0.12 million watched on BBC HD.