Employers will train you to do these jobs, on your internships, etc. So the terms are important. The book is good to have around too. Discussion of television. The amount of time and effort put into it.
Films take months or years to produce.
Soap operas are churned out daily. Images and sound are converted to electrical signals then recorded or aired live. Viewers are totally unaware of the complexity of television. A point and shoot 35mm camera has similar components. Lens, camera body, film, film plane, viewfinder.