After working with such organizations as the lower Manhattan-based Community Action for Legal Services and the National Lawyers Guild, Rivera became a frequent attorney for the Puerto Rican activist group, the Young Lords, eventually precipitating his entry into private practice. This work attracted the attention of WABC-TV news director Al Primo when Rivera was interviewed about the group's occupation of an East Harlem church in 1969. Primo offered Rivera a job as a reporter but was unhappy with the first name "Gerald" (he wanted something more identifiably Latino) so they agreed to go with the pronunciation used by the Puerto Rican side of Rivera's family: Geraldo. Due to his dearth of journalistic experience, ABC arranged for Rivera to study introductory broadcast journalism under Fred Friendly in the Ford Foundation-funded Summer Program in Journalism for Members of Minority Groups at the Columbia University Graduate School of Journalism in 1970.