Nielsen Reveals Ratings Glitch. Some Media Agency Execs Reportedly Think Millions of Dollars in Make-Goods Might Have to Be Given
"Nielsen Wednesday [Sept. 21, 2011] began informing clients about a major snafu … that generates gross ratings points (GRPs) for the multibillion [dollar] television advertising marketplace," reports Joe Mandese at MediaPost. Mandese continues: "Nielsen said the glitch has been generating incorrect…