Run-of-schedule

Run-Of-Schedule (ROS)
Scheduling of commercials at any time of a station's choosing.
Road Blocking
The scheduling of a brand's commercial at approximately the same time on all networks, or all stations in a given market.

Run-of-schedule (ROS) A station's option to place a commercial in any time slot that they choose. Rushes Rough, unedited prints of a commercial to be used for editing purposes. Also referred to as dallies.

See also: Impressions, Attribute, Advertising budget, Presentation, Opportunity