there's an online interview something like Skype where it asks you a few questions, maybe 5 simple questions. if they like you they'll transfer over your app to whatever network fits you that you've stated you were interested in, if that network likes you that network will directly contact you and set up an interview. this will be the last phase of the process. my advice would be to know exactly what areas you are interested in and why NBC is such a huge company with many networks they want to know exactly what you're interested in so they can place you in the right directions and actually pitch you to the different networks that need interns