One of the earlier shows that Mercado hosted and for which he gained
fame and popularity was the ""Darigold Jamboree" (1969) Bulilit Contest
on Channel 11 which he co-hosted with
Leila Benitez. Among the more
successful products of the contest were Richard Merk, who was champion
for 18 weeks, and Nora Aunor who reigned champion for 14 weeks.