Greetings to all from DMAGeorge. That’s my interest, DMAs.
I’m looking for some help to identify precise current boundaries for DMAs and the derived TMAs of the FCC, and how they have changed over the years.
Just by way of comparison, for radio Arbitron makes everything about market definition transparent to everyone (the general public, not just subscribers). Just hop on their site, and the counties (or split counties) for each market are available from a drop-down menu. No guesswork. They even provide a zoomable pdf map.
I have not been able to find anything similar on Nielsen’s site. Evidently, Nielsen considers market definition proprietary information, even though the FCC uses it to define TMAs.
I suppose that’s why there is so much out-of-date, misleading, and even intentionally incorrect third-party maps and information floating around, such as Newport Media, Truck Ads, and so forth.
Searching this SatelliteGuys Forum, a post from 2009 by dmendenjr [threads/165484-Neilsen-realigns-some-DMA-s] is the kind of thing I am looking for, because it lists specific counties which were moved by Nielsen from one DMA to another. I would love to know the source of this info, and whether it is available for more recent years.
Is it true that Nielsen reassigns each year? Is it always in September?
Does anyone know if Nielsen makes a formal release of these changes? If so, where?
My goal is to clarify the fuzziness of current DMA definitions, and also to identify counties which have switched in the past decade or so.
Thanks in advance for any help.
I’m looking for some help to identify precise current boundaries for DMAs and the derived TMAs of the FCC, and how they have changed over the years.
Just by way of comparison, for radio Arbitron makes everything about market definition transparent to everyone (the general public, not just subscribers). Just hop on their site, and the counties (or split counties) for each market are available from a drop-down menu. No guesswork. They even provide a zoomable pdf map.
I have not been able to find anything similar on Nielsen’s site. Evidently, Nielsen considers market definition proprietary information, even though the FCC uses it to define TMAs.
I suppose that’s why there is so much out-of-date, misleading, and even intentionally incorrect third-party maps and information floating around, such as Newport Media, Truck Ads, and so forth.
Searching this SatelliteGuys Forum, a post from 2009 by dmendenjr [threads/165484-Neilsen-realigns-some-DMA-s] is the kind of thing I am looking for, because it lists specific counties which were moved by Nielsen from one DMA to another. I would love to know the source of this info, and whether it is available for more recent years.
Is it true that Nielsen reassigns each year? Is it always in September?
Does anyone know if Nielsen makes a formal release of these changes? If so, where?
My goal is to clarify the fuzziness of current DMA definitions, and also to identify counties which have switched in the past decade or so.
Thanks in advance for any help.