Complex sentence: Before production began, a salary dispute between the main cast members of "The Simpsons" and Fox arose--however, it was soon settled and their salaries were raised to US $125,000 per episode.
Split into simpler sentences: Before production began, a salary dispute between the main cast members of "The Simpsons" and Fox arose. However, it was soon settled and their salaries were raised to $125,000 per episode.