As shown in the graph displaying the number of countries broadcasting the Olympics and the revenue received from it, the fees for broadcasting the Olympics in the U.S. as greatly increased. Since the start of the broadcast of the Olympics in the 1960’s the fees that television networks were willing to pay for broadcasting rights for the Olympic games in the US has steadily increased sometimes even doubling from one year to the next. When comparing the revenue gained from broadcasting to the fees paid for US broadcasting rights, the US fees make up a large majority of that revenue earned. This is interesting, showing how much the Olympic games and viewing them means for marketing and advertising and how profitable those advertisements can be.
http://www.terramedia.co.uk/media/change/olympic_games.htm