ir means ur going for example yo voy a ir a la escula
ser means to be for example Ser is used to link two pronouns or a noun and a pronoun. Both nouns or pronouns may appear in the sentence o merely be understood. ... If it is an adjective, you can use either ser or estar, depending on what the meaning of the adjective in the sentence is or which meaning you would like the adjective to have in this specific sentence. Most adjectives can be used with both verbs, but resulting in different meanings.
I would tell her that it would depend on what she wanted to watch it on. on cable there is some but not much, on direct TV there is a lot of them, but on Netflix, Hulu, and the apps like those there are a lot more of them than on cable and direct TV combined.