Even in an age of cellphones and online social networks, Mr. López’s radio show has endured since its first broadcast in 1995, picking up its 12th station in the United States a few months ago, in Santa Barbara County. The show is broadcast from 10 a.m. to 2 p.m. every Sunday on Radio Bilingüe, the only Spanish-language public radio network in the United States, and also streams on the Internet.
