US Patent 7685520 Electronic programming guide with selectable categories

An electronic content guide may organize content such as television programs into categories and subcategories. The categories and subcategories may be topical as well as time-based. As a result, the user can select a given time-based criteria and within that time-based criteria select topical subcategories. As a result, the number of programs that may be displayed in any given graphical user interface may be reduced to a manageable level. This may be done without requiring a great deal of scrolling to view selected categories, subcategories and particular programs.