Most people I know think Howard Stern is an oddity.  Although he’s had a loyal following for 30 years, most business people never listen to his show.  And they can’t believe he’s being offered $500M to change his broadcast to satellite radio.  Of course, few of them listen to satellite radio, either.

But, I think anyone who uses radio advertising had better get serious about Sirius.  Many electronics stores (Best Buy, Circuit City) sold out of satellite radio equipment this Christmas.  Sirius now has over 3 million subscribersXM Radio (the competitor) has over 5 million subscribers.  Quarterly subscriber growth, before Christmas, exceeded 20%.

Back when Ted Turner launched 24 hour news, and "America’s Team" (the Atlanta Braves) to fill programming for his cable TV stations most people thought cable TV was an oddity.  Now, the networks have long lost their grip on market share as customers flock to targeted stations on cable TV and increasingly avoid commercials with Tivo and other Digital Video Recorders.  Do we think the transition in radio will be slower, or faster?  History would say that the adoption rate of similar technologies is exponentially quicker.

If you own stock in a radion station, and think people want "local programming", you’d best be taking stock of Sirius and XM.  This is a serious shift in behavior.  Sirius only needs 1 million new subscribers to make the Stern offer profitable.  Since they added nearly 360,000 new listeners in the third quarter that looks pretty likely.

Challenges to business don’t often present themselves like a hurricane.  They are subtle.  Business people have to read the Challenges to catch winds early and make changes.  The Telltales are showing that something is happening in radio-land.  Don’t take long to prepare.  If you invest, or if you depend on radio advertising, you had better pay close attention and start making your contingency plans.  As shocking as Howard Stern is, he won’t cost you money like the shock of missing the lastest shift in behavior.

You don’t want to be committed to CDs when iTunes hits.  You don’t want to be long on newspapers when Google’s classified ads start making inroads.  And right now, I’d be paying close attention to listener behavior in radio — and thinking about how it will impact your business and investments.