Linear Broadcasting

Channel

Typically a playout channel. Each site can have several channels. In some cases such as a VOD application, Nebula may be configured without any channels.

Event

A calendar entry. In the case of linear playout scheduling, an event is an "EPG" program block. An event belongs to a channel and has its start time and other metadata such as title and description.

Users can view and edit events using the scheduler view in the Firefly application.

Item

Generally, an item is an instance of an asset scheduled in an event playlist. Several special types of items (without relation to any asset) may be inserted to a playlist as well, such as live events, placeholders, etc.

Rundown

List of all events and items for one day. Rundown view shows all items scheduled for a channel on a given day. It is used to create and edit the schedule, as well as to monitor the playout.

As-Run

An as-run log is the actual and accurate list of items which have been played out. Nebula provides a mechanism to filter and export the log to various formats for clients, collective rights management organizations, etc.