Carillo began her television career working for USA Network from 1980 to 1987, PBS from 1981 to 1986 and MSG from 1981 to 1988. She then worked for ESPN from 1988 to 1997 and again from 2003 to 2010. She also worked on US Open coverage for CBS Sports from 1986 to 2014. In addition, Carillo worked as both a host and analyst on HBO's Wimbledon coverage from 1996 to 1999, and on Turner Sports' Wimbledon coverage from 2000 to 2002. In May 2003, Carillo joined NBC Sports as an analyst on its French Open and Wimbledon coverage, having made her debut as an analyst on NBC for the 1996 Family Circle Cup tennis event. She also does commentary on The Tennis Channel.