But as a practical matter, it is highly unlikely that a television producer would ever sue a school or individual teacher. In any case, a lawsuit is just too expensive. In the past 200 years, only a handful of copyright infringement suits have been brought against educators, and there is only a single reported court decision on videotaping, which involved large-scale, systematic taping by an educational consortium in New York. Probably the worst that would happen is that the producer would send the school a nasty letter and demand some payment. Fear of getting caught, of course, isn't the only reason to obey the law.
Schools have a special responsibility to set an example of obedience to law.
And from a purely practical point of view, schools are an important market for producers of documentaries and other educational works. If instead of buying copies of a program, schools simply taped a telecast and made as many copies as they chose, producers would lose money and be less likely to create new educational works. Helps you register and transfer copyrights for written and electronic work. Also covers how to define and avoid infringement. Indispensable for any writer.