Was just coming on to say that DS had his online interview yesterday for Manchester (M Physics) - he received his offer this evening which was their standard offer of A star A star A to include maths and physics. His group were not all told they'd be getting an offer in advance however and he thought the interview was quite tricky as he was interviewed by a specialist in an area of physics he has no experience of nor interest in so when asked questions in that area just did his best to be engaging and 'teachable'.
@olliepolly was your DS's the contextual offer if you don't mind me asking?
I know that TSR consensus appeared to be that if Manchester offered you an interview you'd be getting an offer, in physics at least - that would appear to be borne out by your DS's experience being told in advance of the interview to expect an offer, and as you say the lengthy presentations etc appear to have been more of an attempt at selling the course.