Complex sentence: In 1960, Six Catholic Diocesan Superintendents (Brooklyn, Rockville Center, Archdiocese of NY, Bridgeport, Newark, Jersey City) decided to use television as a means of education within the schools.
Split into simpler sentences: In 1960, Six Catholic Diocesan Superintendents (Brooklyn, Rockville Center, Archdiocese of NY, Bridgeport, Newark, Jersey City) got together. Their goal was to use TV as a means of education within the schools.