Radio Ga Ga: Sirius XM Once Again King of All (New Car) Media

What a difference a year makes. Last February, fresh from merging the country's two biggest satellite radio companies, Sirius XM was on the verge of departing for the big broadcasting network in the sky. Saddled with backbreaking debt and facing a crumbling car market (its largest source of new business), bankruptcy was a very real possibility.

Enter media macher John Malone on a white horse--Malone and his Liberty Media dropped a giant loan on the company in the form of a 40% stake. Soon the...