Why do I need a tivo.com account?

You will need to create an account at www.tivo.com in order to take advantage of TiVo’s online features, such as remote DVR management and scheduling, as well as logging into the TiVo mobile application for iOS and Android. You will need your TiVo Service Number (TSN) and your 10-digit Media Access Key, along with a valid email address to create an account.