Show Business: Round 1

"Winning team at the Miami marathon," bragged NBC. "Audiences turned their attention to the CBS News team," proclaimed CBS. In the aftermath of the Democratic National Convention, each network announced that it had won the ratings game and quoted conflicting figures to prove it. Last week the A.C. Nielsen Co., which conducts the most reliable survey, confirmed NBC's claim. According to Nielsen, NBC drew an average 25% of the national viewing audience for the convention's four nights, compared with 23% for CBS and 16% for ABC (which came on the air from Miami...