Along with the continued success of "Sesame Street," Jim Henson Productions began a global venture in 1983, collaborating with several production agencies worldwide, to produce the Muppet-populated children's program "Fraggle Rock." Designed from the start to address a more global audience, the program found success and ran steadily for four years, and then in syndication for many more. Like other successful children's television programs, "Fraggle Rock" inspired spin-off merchandise. Designer Bruce Whitehill created a clever board game in 1984, based on the program's dynamics, for Milton Bradley.