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.
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).
The EPG Channel would later be renamed Prevue Guide and go on to serve as the de facto EPG service for North American cable systems throughout the remainder of the 1980s, the entirety of the 1990s, and – as TV Guide Network or TV Guide Channel – for the first decade of the 21st century.
STV/Onsat, a print programming guide publisher, introduced Super Guide, an interactive electronic programming guide for home satellite dish viewers.
Some guides also feature backward scrolling to promote their catch up content. 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 television provider 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.
It allowed cable systems in the United States and Canada to provide on-screen listings to their subscribers 24 hours a day (displaying programming information up to 90 minutes in advance) on a dedicated cable channel.
Raw listings data for the service was supplied via satellite to participating cable systems, each of which installed a computer within its headend facility to present that data to subscribers in a format customized to the system's unique channel lineup.
DISH introduces the DISH Player-DVR 942, the first multi-room satellite TV receiver that records in high definition*, and gives families everywhere the ability to watch TV in whichever room they want. Three people – Charlie Ergen, Candy Ergen and Jim De Franco – were hauling an enormous C-band TV dish antenna via pickup truck to a customer in remote Colorado.