Complex sentence: His assignments over the years have included White House/Washington Correspondent for WPIX and as a National Correspondent for Tribune Broadcasting and establishing Long Island specific news coverage as it exists today to over 7.5 million residents.
Split into simpler sentences: His assignments over the years have included White House/Washington Correspondent for WPIX and as a National Correspondent for Tribune Broadcasting. He is also credited with helping to launch Long Island specific news coverage as it exists today to over 7.5 million residents.