It has been my intention to compare the audience size of the two conventions. As I look across the Internet, however, I find that isn’t a particularly realistic goal. Many sources disagree with one another, depending on their ideological leaning. On the one hand, Democrats experienced a 50% decline in viewership from four years ago. On the other hand, they may have beaten viewers of the Republican Convention by a million or so. Or not! I say “Or not.” because the Nielsen rating service only counts the viewers of commercial stations since it is those ratings which determine ad prices. There ...