The Videos are not necessary to prepare to pass, but they do make the process easier and faster.
The short answer is that no, you do not need the videos to pass the exam. Many people prepare successfully without the videos. While we think that the videos make your studying more efficient (and perhaps more enjoyable), all of the information in the videos is also in the textbook. What the videos do is to bring my many years of teaching experience directly to you, making the topics much more alive than you just reading out of the book.