Fans of Modern Family, Scandal, Agents of S.H.I.E.L.D. and Revenge just got another item to add to their list of New Year’s resolutions: find their cable account credentials. Starting on January 6, ABC will require viewers to sign in with their cable account information if they want to watch new episodes of the network’s shows online the day after they air on TV. The network explained the new requirements in an FAQ this way: “Pay TV service providers are a key part of the television industry in delivering broadcast content through new technology platforms.