Electronic program guides (EPGs) and interactive program guides (IPGs) are menu-based systems that provide users of television, radio and other media applications with continuously updated menus displaying broadcast programming or scheduling information for current and upcoming programming. Some guides also feature backward scrolling to promote their catch up content. They are commonly known as guides or TV guides.
Non-interactive electronic program guides (sometimes known as “navigation software”) are typically available for television and radio, and consist of a digitally displayed, non-interactive menu of program scheduling information shown by a cable or satellite televisionprovider to its viewers on a dedicated channel. EPGs are transmitted by specialized video character generation (CG) equipment housed within each such provider’s central headend facility. By tuning into an EPG channel, a menu is displayed that lists current and upcoming television programs on all available channels.
A more modern form of the EPG, associated with both television and radio broadcasting, is the interactive [electronic] program guide (IPG, though often referred to as EPG). An IPG allows television viewers and radio listeners to navigate scheduling information menus interactively, selecting and discovering programming by time, title, channel or genre using an input device such as a keypad, computer keyboard or television remote control. Its interactive menus are generated entirely within local receiving or display equipment using raw scheduling data sent by individual broadcast stations or centralized scheduling information providers. A typical IPG provides information covering a span of seven or 14 days.
Data used to populate an interactive EPG may be distributed over the Internet, either for a charge or free of charge, and implemented on equipment connected directly or through a computer to the Internet.
Television-based IPGs in conjunction with Programme Delivery Control (PDC) technology can also facilitate the selection of programs for recording with digital video recorders (DVRs), also known as personal video recorders (PVRs).
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TV and Social WEB
The second life of television content
The article describes the results obtained in the framework of the collaboration between the RAI Research Centre and the Department of Computer Science of the University of Turin in the definition of a model of integration of heterogeneous data from different knowledge bases (television archives, EPG , audience, social networks, etc.) that contribute to the definition of “second life” of television content, since its production, the next broadcast and continuing with comments and content generated by users on the web.
The proposed model allows to represent through a single graph of understanding the different entities and relationships that emerge from the television domain analyzed.