Paul Geerts joined the Studio in 1968, where he at first worked as an artist on the German "Jerom" comics. Already in 1969, he replaced De Rop as the main inker for "Suske en Wiske". Geerts also drew Vandersteens attention when he proposed a few scenario's for "Jerom", and in 1971 he made his first story for "Suske en Wiske". From 1972 on, he became the main creator of the flagship series "Suske en Wiske", which he continued until the late 1990s. De Rop and Goossens again became the main inkers, with Geerts responsible for the stories and the pencil art. In these years, "Suske en Wiske" reached its peak popularity, and the older stories now were republished in colours in the main series. In 1975 and 1976, the Dutch television broadcast six puppet movies with new "Suske en Wiske" stories. They were very successful and sales of new albums reached over 200,000 copies. The merchandising business boomed as well, and commercial comics were one of the main new jobs for the Studio.