"Juan Ma", as he was referred by some, participated in a televised program called Medio Día Puerto Rico (Midday Puerto Rico), during the lunchtime hours on Televicentro Puerto Rico in a segment called "La Escuelita" (The Small Schoolhouse).
In 1989, Monclova made his television debut, at a well-known but short-lived comedy section of El Show del Mediodia, at WAPA-TV.