Interactive program guide system providing an application program interface for non-program guide applications

摘要

A system is provided in which an interactive television program guide application and non-program-guide applications are at least partially implemented on user television equipment. A program guide program application interface is provided that is used to maintain a consistent user interface between the program guide application and the non-program-guide applications. Non-program-guide applications may be launched by the program guide application. The user may select certain non-program-guide applications as favorites and may set parental controls for certain non-program-guide applications. The program guide application may run in the background while a non-program-guide application operates. The applications may be located at a remote location such as on a server at a cable system headend or on a server on the Internet. The program application interface may perform authentication and access rights determination functions. Reminders may be set for the content of non-program-guide applications.