“Last week, Sirius announced that it had granted Mr. Stern and his manager more than 34 million shares of common stock, currently worth about $225 million, because certain subscriber levels had been reached. That is on top of the $500 million that Sirius had already agreed to pay Mr. Stern for his salary and production costs. Whether or not Mr. Stern’s show, which begins at 6 a.m., is a success, his decision to jump from free broadcast to subscription radio has bestowed legitimacy to a medium that many had regarded with skepticism.”