@TenTonTessa It’s all a bit random based on College and subject. Some subjects have candidates considered at the Faculty level while others allow colleges significantly more autonomy.
They should receive an email directly from the college to tell them if they are
being called to interview or not successful.
The first few have already started to be invited for interview from Monday this week and typically this will continue until around 3rd December.
Like you I am burning with curiosity but trying not to stress DS as he is focused on interview prep atm.
HTH