Complex sentence: Previous Starrcade events have been held at the Greensboro Coliseum, and this event was the first to be expanded, and held in two locations, with both also serving as locations for broadcasting via closed-circuit television.
Split into simpler sentences: Previous Starrcade events have been held at the Greensboro Coliseum, and this event was the first to be expanded, and held in two locations. It was the first time an event was broadcast live from two locations, and both also served as locations for broadcasting via closed-circuit television.