What is the primary function of a World Cup soccer telecast?  One station in the UK found out when it ran an advertisement during England v. USA game.

Apparently there was little sympathy for a poorly timed commercial.  For the TV station the primary function may be about generating revenue.  For the viewers the primary function of the TV station is to provide an uninterrupted live feed of the game.  One of these functions took priority over the other with significant consequences.