XM has Oprah Winfrey, Snoop Dogg, NHL, and Major League Baseball.
Sirius has Howard Stern, Eminem, National Football League, and Playboy.
Actually, both satellite radio stations have way more to offer, and it all comes at a steep price, according to a Billboard Radio Monitor article:

Many analysts agree that Sirius offers the more compelling content, but some [...]

A Wall Street Journal article describes how cable and satellite TV companies are beefing up their offerings of Spanish-language programming packages to win more Spanish speaking customers in the U.S.:

Pricing and other terms vary. Cablevision, for example, offers 31 channels in Spanish for $4.95 as an add-on to regular cable service. Dish Network’s Dish [...]

Hello again, and welcome to part 6 in our series: Know Your Satellite Radio Receiver. Today we’ll be talking about the Xact XTR3CK Visor, a neat, if underwhelming, car device.
The Xact is a bare-bones model with one interesting feature, its visor-mounting ability. It’s thin, flat design and attached visor clip [...]