Cold Blood got an AI or Audience Appreciation Index score of 85.
This puts the programme once more in the excellent category.
Sunday night saw Lewis outrate Doctor Who, putting Cold Blood into 19th place for the week on overnights, a position which will rise when final figures are released next Monday. The episode will be repeated on BBC Three tonight at 7pm, a day later than usual, and on BBC HD at 00.15.
Saturdays's Doctor Who Confidential scored an AI figure of 81.