Complex sentence: The Cubs still play the fewest home night games of any major league club, usually reserving night games for nationally televised contests or when it is needed to play a rescheduled game, forcing a double-header.
Split into simpler sentences: The Cubs still play the fewest home night games of any major league club. Night games at Wrigley Field are usually nationally televised contests or when a rescheduled game needs to be played, forcing a double-header.