Unofficial overnight figures show that the first episode of the new series was watched by 8.2 million viewers, a 39.5% share of the audience. The programme was the most watched on Saturday beating the second placed "Any dream will do" by 1.5 million viewers. "Harry Potter and the Chamber of Secrets" on ITV1 was watched by 4.7 million viewers. The audience grew by over 1.5 million throughout the programme to peak at 8.9 million for the last fifteen minutes.
On BBC3, Doctor Who Confidential was watched by 790,000 Viewers. It was the second most watched programme on multi channel TV, being beaten by Ford Football Special on Sky Sports 1.
Incidentally, the Weakest Link special was the most watched non-soap program on Friday. Pretty damn good all round, I'd say.