Mr. Porretto is usually a thoughtful writer, so his misuse of "hearsts" took me aback. The hearst (named for William Randolph Hearst, 1863–1951) is an SI measure of journalistic sensationalism. Geraldo Rivera's early work averaged around 10^25 hearsts, and Shepard Smith's performace during Hurricane Katrina peaked at about 10^17 hearsts. A crawl showing the current temperature and wind speed, on the other hand, seldom exceeds 0 hearsts.
Maybe Mr. Porretto inadvertently left something out.