Vivvo CMS 4.1 http://www.rbr.com/ ©2010 Spoonlabs d.o.o. http://www.rbr.com/files.php?file=rss_logo1_757997737.jpg http://www.rbr.com/ http://www.rbr.com/radio/26292.html Radio News Thu, 29 Jul 2010 12:48:00 -0400 Univision’s refusal to subscribe to Portable People Meter (PPM) ratings data, except in Houston, has been holding down revenues for Arbitron, as noted in the