Have only done the video interviews, currently waiting for a reply!
They have you watch a ~minute long video describing a business aspect of PwC. Then, you get a question, with a deeper explanation and what you should include in your answer. You then get 2/3 minutes to record your answer, and you only get the one shot.
The last question gave you 10 minutes to analyse a case study, and then 5 minutes to present on it; I don't want to give too much away but essentially, the company was struggling with cyber issues and you had to justify what fixes you would make, with figures you've calculated to back it up. It was pretty terrifying at first, but if you keep your head it's not too bad....that said, I don't know if I passed this stage yet.