This book is not a bible on any topic related to digital TV. It's more of a synopsis that briefly discusses what's involved in encoding, transmitted, receiving, and decoding digital signals, with an emphasis on the standards being used in Europe.
I recommend this book for engineers new to the field of digital TV; but once you have an overall idea of how a digital system works, I recommend getting something more specific to your area. This book does not have any formulas or walk-through examples.
To quote the author from the preface, "This book does not aim to make the reader an expert in digital television... The main goal is to enable readers to understand the principles of this new technology, to have a relatively global perspective on it, and...to investigate further any particular aspect by reading more specialized and more detailed books."