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Black Burst/Genlock
Is a signal that is used to sync/genlock multiple video sources to the same sync and color information.

Bulletin
A single piece of content displayed in a zone. A bulletin can be a picture, a video, or a variety of messages made from templates.

Bulletin BR
Similar to a slide in that this can be one of many that make up a Channel. These slides are made up of individual zones that may contain different types of media or information.

Bumper Graphic
A graphic that appears once a loop. It is a welcome message that lets people know who the zone belongs to; usually a logo. Think of it like a station identification on television or radio.