Complex sentence: The NPSL had a two-year national television contract in the U.S. with the CBS television network; referees were instructed to whistle fouls and delay play to allow CBS to insert commercials.
Split into simpler sentences: The NPSL had a two-year national television contract in the U.S. with the CBS television network. Officials were instructed to whistle fouls and delay play to allow CBS to insert commercials.