Technology / Television (TV) Glossary

Gel: A piece of plastic or gelatin placed in front of a light source to change its color.

Genlock: A feature that keeps two or more video streams in synchronization, often combined with a graphic overlay capability. Hardware periphral that allows the user to combine computer graphics on t . . . View Full Definition

Genre: Groupings of television programs defined by their narrative structure, thematic content, and style of sound and image.

Geo-Targeting: The process of identifying a brand’s geographic areas of opportunity, or the markets (dmas) in which advertising is most likely to produce sales. Geographic targeting combines demographic an . . . View Full Definition

Geographic Targeting: The process of identifying a brand’s geographic areas of opportunity, or the markets (dmas) in which advertising is most likely to produce sales. Geographic targeting combines demographic an . . . View Full Definition

Geostationary: Satellites orbit the Earth 22,300 miles above the Equator and rotate at the same relative speed and direction as the Earth's surface. Therefore, the satellites appear stationary. There are w . . . View Full Definition

Glitches: Any oddity in a video signal.

Grain: The silver halide crystals suspended in the emulsion of a piece of film. When struck by light and chemically processed, these crystals change color, resulting in the film image. The smaller . . . View Full Definition

Graphic Overlay Titling: The superimposition of a computer image over a video signal (the computer image typically is keyed to replace a given color or color range in the TV signal).

Gross Rating Points (GRP): The sum of individual telecast ratings on a total program basis or advertiser commercial schedule, without regard to duplication. For example, 10 announcements each with a 10 rating would pr . . . View Full Definition

Hand-Held: A technique in which the camera is held by the camera operator, rather than fixed to a camera mount such as a tripod or dolly.

Hard Light: Direct, undiffused light: the result is the casting of harsh, distinct shadows.

Hard News: Refers to news stories that examine events which affect society as a whole (e.g., national politics and international relations).

Hard Reset: A hard reset is the same as rebooting a computer.

Hd-Dvd: High-definition digital video disc. Several formats have been proposed for these high-capacity DVD's, including Blu-ray.

Hdcp: High-bandwidth Digital Content Protection. Copy-protection scheme developed by Intel to be used in conjunction with DVI and HDMI connections.

Hdmi: High-Definition Multimedia Interface. USB-like digital video connectivity standard designed as a successor to DVI: can transmit both uncompressed digital audio and video signals: protected b . . . View Full Definition

Hdtv: HDTV, or High Definition Television, is a digital television format that combines high-resolution video and theater-like sound to create a movie theater-quality TV viewing experience.

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