All the content broadcast by any type of station - television, radio, Internet - has to come from somewhere.  In some cases the content is actually “live” - like with your local news.  Tape recordings is another method.

But all these rely on getting outside content and information.  For that they use Satellite Dish Antennas, usually very large antennas.  By having several aimed at various satellites they can gather a wide variety of content.  Some of the dishes will be “fixed” on one satellite.  Other Dishes are “steerable” or “agile” meaning that using a motorized control mounted on the back to the antenna the station is able to look at whatever satellite in the belt that they need to for new content.  

Tracking and programming these large antennas so that they clearly see the various satellites is an art.