Arbitron also released the first “pre-currency” monthly audience estimates for Philadelphia produced by the Portable People Meter ratings service.
It said it has taken another step in transitioning that market from diary-based radio ratings to electronic measurement.
Programmers will be studying the numbers closely. This is the first release of two monthly “pre-currency” estimates that Arbitron is providing to let subscribing stations and agencies adjust to the differences between PPM- and diary-based ratings.
