scatter advertising
n.— «Most of the advertising time on NBC’s cable channels was sold during an unusually strong upfront sales period last spring. Some of the remaining time—which the industry calls scatter advertising—will be made available to Google.» —“Google Strikes Partnership With NBC to Expand in TV Advertising” by Miguel Helft, Brian Stelter in San Francisco, California New York Times Sept. 8, 2008. (source: Double-Tongued Dictionary)