They seem to be the ones quotes in various online articles.
Where you getting your viewing figures from?
They are the overall consolidated figures taking into account iplayer, delayed viewing etc. Actually I think ep 1 was 8.15m which is excellent. Again, I have no opinion either way of the quality of the programme but the lazy journalism drives me mad and its's the consolidated figures that the BBC will be interested in, not the virtually irrelevant overnight totals. What would be worrying them a little is that each episode is getting less viewers than the previous one but that's normal after the blaze of publicity of the first episode.