Television news bulletins are highly organized forms of discourse that develop in a predictable manner owing to the strict limits governing the appearance of a restricted number of structural components and the sequence in which they appear. We can learn a lot about these factors by looking at how they interact with one another. The first thing to say here is that there is no single formula for a television news bulletin. They vary in length, style and content depending on the type of program it is supporting and the time of day or night it is broadcast. However, despite their diversity, all news programs share several common elements: a lead story or stories; reports on other topics within the current news cycle; interviews with people involved in events discussed in the show; and space for advertising. These elements are not always present in equal amounts in every program but they are typical enough to identify them as newsworthy items. As its name suggests, a news program is intended to provide "news" about recent events. Therefore, its content tends to be relatively up-to-date and drawn from recently published sources. Old material can still be used but only old events likely to still be relevant today will be included. A news program is also an opportunity for the broadcaster to give its audience a brief overview of other issues/topics happening in the world at any given time.