As far as I know most UK universities tend to have focused degrees - you sign up to a particular course and that area is what you focus on for 3 or 4 years. The good side of this is the focus on a particular area, the downside is that if you choose a course that you find that you don't like it can be difficult to transfer to other courses unless they are closely related.

Mind you - my experience is 30+ years old at this point.