 In the 1980s, his show was seen on several TV channels throughout Latin America and the United States.When Tommy Muñiz bought WRIK-TV, Mercado stayed for two years then moved his show to WKBM-TV, Channel 11/Tele Once (later renamed WLII-TV/Univision).In addition to the TV programs, Mercado also wrote his predictions for newspapers, magazines, and web pages.