Not the news. The announcers speak so fast you’ll be discouraged from the start. Watch one of the extravaganza shows like “Sabadazón” on Saturday mornings on Univision, or follow a telenovela.
Telenovelas are like our soap operas, with the major difference that they have a beginning and,about 6 months later, an end. Stay alert to when one is beginning and get in on it. They come on for 30 minutes, Monday through Friday, mostly in the late afternoon and evening.
My friends Benjamin and Celia both considered this to be the one best way to learn Spanish. It will accustom your ear to the Spanish of many different people. You can even talk about it with most Spanish-speakers you encounter. Everyone follows the telenovelas.