Test taken: English Literature Admissions Test (ELAT), Modern Languages Admissions Test (MLAT)
Number of interviews: 5
Time between interviews: I had two the first evening I arrived and then another early morning the next day. Then another two the day after that, so the gaps between them were quite long.
Length of interviews: 30 minutes
Online interview: No

I had 5 interviews in total. In the first English interview, we started with discussing my A Level text. They asked some thematic questions and then moved onto discussing some Shakespeare - the interviewer gave me a choice as to which play I wanted to discuss. After discussing the one I chose - Macbeth - I was then asked about another play (Troilus and Cressida) which I was less familiar with, (but had still read - I had listed it as one that I liked).

My second interview was for French - it was half in English, half in French and asked about things like literature genres. I found these questions more difficult than the personal statement questions because they were more random. This interview was quite tense for me but I thought through it afterwards and it was more nerves than any actual problem.

My third interview was the best and it felt like a chat, an interesting conversation. This was a joint English/French interview. I was given a poem in English to read and then discuss. The interview started with a discussion of the poem and then moved onto the French books on my personal statement (which we discussed in English at this point) we talked about the themes, what made those books interesting to me, and then switched to French to talk about France itself, why I enjoyed speaking and learning French and a bit more about the books we'd started discussing in English. After this interview I felt much more cheerful than I had after the others because I thought I'd got my opinions across more clearly and successfully.

My fourth and fifth were at a different college, English and French interviews separately. The English interview started with discussing and comparing two poems that I had been given then moved onto a genre from my personal statement (gothic). This was a fairly conversational interview which was much more relaxed and fun for me personally. The French interview started by looking at a poem I had been given in French, then moved onto some more French poetry from my personal statement. There were three interviewers this time, instead of the usual two which made me more nervous than I had been in previous interviews. 

For my English interviews, I reread the books on my personal statement a few times until I knew them well enough to discuss anything on there. My sixth form college gave us a practice interview which was useful for nerves but the question were sometimes a bit too obvious.

For my language interviews, I revised my general grammar points as well as rereading as many of my personal statement texts as possible and considering what I would say if I was asked about each one.

A lot of past practice papers, some advice from teachers and family, but the practice papers were the most important part of my preparation.

You don't need to be astonishingly insightful about everything you've ever read and the interview may change your mind about some things (which is good as it shows you're open to listening and developing your ideas), but it's good to have thought about it just to give yourself a starting point. Something to bear in mind is that even if you don't get a place, an interview is a really good opportunity to discuss your interests with an expert, so make the most of it and try not to let your nerves get the better of you.