My thoughts so far run to journalist/audience comments if you've found nothing else on the web. I read an article on the start of series 2 (in the US) in The Guide in Saturday's Guardian which may be of some use. I can't find a copy on the website but could sneakliy post you a copy from work if it might help. Or perhaps you could email the journalist to see if he has any sources you could use (I'll find out the name).
Other than that, I found some stuff on the BBC news site...
news.bbc.co.uk/1/hi/entertainment/reviews/2197934.stm
news.bbc.co.uk/1/hi/entertainment/reviews/2376247.stm
Other than that, I found some stuff on the BBC news site...
news.bbc.co.uk/1/hi/entertainment/reviews/2197934.stm
news.bbc.co.uk/1/hi/entertainment/reviews/2376247.stm