TheFonz said:
DavidEduardo said:
TheFonz said:
Now, you'll really have to explain THAT. Maybe you should give us an example. Pick a market, station, day, and time. Tell us how many people were listening and how that number was determined.
It's all computerized. In TV, a client buys spots on a variety of shows on a station or network or cable channel baseed on past ratings. When the spots air, and then when the ratings for the days and hours are out, the promised delivery is compared to actual for the day and hour of each bought show and the rate credited if the delivery is below the commitment.
This has been going on for years in TV and will be with the meter in Radio.
A fictional case would be a client buying on, let's say, Idol. The net promises delivery of at least 20 million homes. The ratings show 18 million, so the client gets a 10% credit on his invoice. If they deliver 25 million homes, there is no additonal charge, though, in most cases. Posting protects the client against overage in the CPP.
You didn't answer my question. I want an example using an actual station, on a specific date and time, with a head count.
I don't have the software agencies use to do posting which is only in preparation stage in radio; it has been used for many, many years in TV and is an accepted practice.
Here is how it would work in LA for a specific case.
Bud buys KROQ at 25 spots a week, 6 AM to Mid M-Sun against 18-34 (it would really be Men 18-34, but I am keeping this simple)
Based on the Winter book, KROQ has a 0.9 rating in that full week time frame. The 25 spots give them 22.5 Grips and the agency pays $5625 for the 25 spots.
The spots run for 6 weeks between April and early June. That's a total of $33,700 for the buy.
The Spring book comes out. KROQ has a 1.0 rating. The agency actually got 150 Grips, when they paid for 202 Grips. The saved money vs. the delivery.
But the other scenario is different. The book comes out and KROQ has a 0.8 rating. That is 11.1% below the expected delivery, so the agency will expect about $4,000 in credit for the underage... usually the credit is in more spots to make up for the short delivery.
Posting will probably be done for the entire campaign for radio, using averages. However, with the PPM, just like TV, all the advertiser has to do is have the software look at each quarter hour where the spot runs and pull out the rating. Add the underages and overages and matches, and you get the exact number of gross ratings points (Grips) the campaign delivered and you compare it with what you bought... and ask for a credit if the Grip deliver comes up short.