Four notes on terrestrial radio
Terrestrial radio is pretty near death in the First World. Here in the American Colonies, we tried to switch over to digital ("HD radio") to invigorate the business and failed miserably.
So, four thoughts to temper the tempers.
(1) Most kidz today use their iPod for their personal "radio" mix. Artists are found via word of mouth or YouTube, and less via promo by the licensed broadcasters. Radio Disney may be the exception here, but their target is the over-pampered 5-11 demographic anyway.
(2) Here in the Colonies you can *literally* drive from coast to coast listening to the same programming. There are several U.S. wide network feeds like JACK, Radio Disney and The Wolf that are truly seamless from station to station. Again, because the revenue to support a radio station is GONE, the only way to run a station at all is by mass-producing a format and distributing it cheaply. Even so, it is doubtful that these networked stations will last out the decade - revenue is drying up faster every day. In fact, it's so bad that you can buy a secondary market station (non-top 10 markets) for as low as US$20k. That's assuming the market is big enough to support a station other than one of the networks.
(3) Ethnic radio is the *ONLY* growing segment of the broadcast market. A "survey" I do each time I reach a new city is to use the rental car's "scan" to listen to all the stations in the area for about half an hour. The "usual" mix on AM is roughly 30% Spanish language, 20% religious, 25% talk radio (mostly networked or local sports), 10% "other" Ethnic (ie, Hindi, Russian, Pakistani, Vietnamese) and the remainder "legacy" stations that are operated by a couple of people more as a hobby than as a business and/or news stations. FM is about 30% "networked" feeds, 20% talk radio, 20% religious, 10% Spanish language, 10% National Public Radio and the rest (ie, about 1 station) either Jazz, Classical or some other "local option" format. The growth is in the number of "other" ethnic stations on AM: at least one new language each time I return to a region. Even religious stations (the previous growth market) seem to be drifting away.
(4) Satellite radio is where many Americans are turning for broadcast sound if they don't have an iPod. Sports, wide music choices, alternative entertainment (comedy, drama, etc.) and "real" news (including BBC, CBC as well as the big US television news stations audio) make the US$10/month subscription fee appealing. Also, most autos come with either XM or Sirius as a pre-installed option (at least GM, Ford and Chrysler), making it easier to get into the subscription. Yes, I know XM-Sirius is in financial trouble, but of all the radio broadcasters it's got the best chance of surviving - because it offers customers a better choice than any of the terrestrial networks.
If you want to get more information on the state of radio in the U.S. I recommend Radio Business Report (www.rbr.com) (subscription) for a very detailed daily analysis of the radio and television broadcast industry.