drded said:
Clear Channel owns a big chunk of Ibiquity, so they are not going to shut off their own revenue stream.
Clear Channel owns a tiny piece of iBiquity, which is mostly owned by venture capital and investment bank interests. Early on, most of the major broadcast groups made small investments (to put it in perspective, around the cost a good station would incur building one good studio in LA or New York) in iBiquity as seed capital. The idea was never to make money, but, rather, to encourage digital terrestrial.
Several rating services have come and gone.
Hooper, Trendex, Pulse, Nielsen Radio (in the 50's), Mediastat, Mediatrend, Accuratings, Mobiltrak, Burke, Birch, Audits & Surveys, Arbitron, Eastlan, etc.
Veterans may remember some that could easily be bought, i.e. if you bought the service your station got higher ratings, if you didn't...
I remember bad broadcasters saying that... as an excuse for bad ratings. There was never any evidence of purposeful distortion.
The diaries have been tainted for many years by age, ethnicity, ownership, and who knows what else.
Not really. Age projections are proportional to each age group's percentage in the market, in any survey. Ownership has nothing to do with it, and ethnicity is similarly proportional to the market percentages.
The PPM uses a panel and passive measurement, but other than that all surveys simply measure a proportional sample and project the results into the universe.