 His TV debut as an entertainer came when Puerto Rican producer Elín Ortíz invited him to perform on his TV show when one guest artist did not show up.Walter Mercado happened to be at the station and Ortiz asked Mercado to use the 15-minute allotment scheduled for the other guest, to make astrological predictions wearing colorful and extravagant robes.After that, Mercado was made a regular in the show making astrological predictions.