But it`s not really dependent on what the broadcaster uses those extra breaks for, advertising would be great, but having the opportunity to plug their own up-coming events to a captive audience would be valuable to them as well.
And then there is the issue that in effect, the extra breaks are effectively adding more content and we know how valuable content is. The more time viewers are tied up to your station, the less likely they are to go elsewhere. That`s basically the whole argument about providing extra teams and games for a broadcaster.