Media Rating Council grants accreditation to four additional Arbitron Portable People Meter markets including Chicago and San Francisco. 18 PPM markets now display MRC accreditation....
Cumulus Media signs multi-year agreement with Arbitron for radio ratings services across all 450 stations in 100 markets, including diary and PPM ratings....
Nielsen Holdings announced a $48 per share acquisition of radio ratings company Arbitron Inc., combining TV and radio measurement capabilities for advertisers....
Radio stations must update Total Line Reporting status by November 7, 2012 for Fall Phase 2 Arbitrends report. Stations simulcasting 100% programming are eligible....
The Media Rating Council granted accreditation to five additional Arbitron PPM markets including Los Angeles, Baltimore, and San Antonio for radio ratings data....
California Attorney General Kamala Harris reached a settlement with Arbitron over discriminatory radio ratings methods that undercounted minority audiences....
Arbitron announces new 70-point criterion for metro survey areas, replacing 13-year-old policy. Changes affect radio market definitions starting Fall 2011....
Media Rating Council withdraws accreditation for Arbitron's RADAR and Nationwide radio audience services due to unaccredited PPM market data inclusion....
August 2010 PPM radio ratings for major markets including Baltimore, Tampa, St. Louis, Seattle, San Diego, Pittsburgh, Phoenix, Minneapolis, Miami, Detroit, Denver and Boston....
Arbitron's Portable People Meter achieved record sample sizes in January 2010, with 18-34 demographics surpassing benchmarks and a new high for Black listeners aged 18-34....
Clear Channel Radio Chicago stations show major growth in January 2010 Arbitron ratings. WGCI 107.5 leads with 47% year-over-year increase in key demographics....
Arbitron accelerates cell-phone-only household sampling plans, targeting 15% of diary samples by Spring 2010. The move aims to improve radio ratings accuracy for the 18-34...
Arbitron accelerates plans to boost cell-phone-only household sampling to 15% by Spring 2010, targeting improved audience measurement for 18-34 demographics....
Arbitron launches Urban Sales Clinics for radio stations transitioning to PPM measurement. Free webcasts and in-person training help urban format stations boost ratings power....
Arbitron commercialized its Portable People Meter radio ratings service in five new markets including Tampa, St. Louis, Denver, Baltimore and Pittsburgh in September 2009....
Rickey Smiley moves to Atlanta radio market to compete with Steve Harvey and Frank & Wanda. V103's Frank & Wanda dominates all demographics with 20.6...
Coleman Insights debuts study on high-performance radio stations using PPM data at NAB Radio Show. Research analyzes 850 stations across 20 markets....
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