There is an option for FIOS TV as a sub account privilege. What does this option (FIOS TV) provide to the sub account holder?
it gives them access to the tv online features.
so hbo go, showwtime anytime, max go, epix on line, as well as the vz website tv features like remote dvr and flex view and their tv online features.
you can see what those things are by logging in at www.verizon.com/fiostvonline