All of the extraneous non-program elements within a given program or time period, e.g., program titles, billboards, station promos, commercials, network identification, local station identification, public service announcements, etc.
Many different commercials that compete for the viewers' or listeners' attention. In print, many different ads printed within a small amount of space.
Material that is non-program and non-commercial; term often applied to public service announcements and promotional announcements.
An excessive number of non-programme elements (such as commercials) appearing one after another.
Avoid the temptation to send extraneous copies to persons other than primary recipients; such practice has several unintended consequences: e-mail clutter, intimidation of the main recipients, and unnecessary replies.