Complex sentence: The World League of American Football suffered a loss of nearly $7 million during its first season, and none of its teams made a profit; in addition, television ratings on ABC and USA network were poor.
Split into simpler sentences: The World League of American Football suffered a loss of nearly $7 million during its first season, and none of its teams made a profit. In addition to the monetary loss for the league, television ratings on ABC and USA network were poor.