You do not have to ask a CSR for a waiver. If you cannot get NBC, and DirecTv drops it from your locals, you can request the waiver from the TV stations engineering dept. And I would suggest doing it in person, or it will be denied. Be prepared with graphs from TVFool showing the channels coverage at your location if you are in a grade B area on the TV stations FCC filing. If the waiver is denied, and you actually cannot get it with a full gain outdoor antenna at a reasonable height (i.e. from the roof of your house), you can appeal the waiver denial, but will have to pay to have a signal analysis performed by a third party.