 In 1968 Roberts worked with Madison Square Garden, producing and announcing eight World Boxing Championship bouts that year, concluding with the heavyweight title bout between the world champion Joe Frazier and Oscar Bonavena.He also helped line up the television stations for a national TV network of his own and innovated closed-circuit boxing in hotel ballrooms and racetracks.In 1971 he launched Roberts Television International and introduced broadcast syndication of major sports and entertainment programming.