KOAC-TV in Corvallis began operations on October 7, 1957. KOAC-AM-TV soon became the primary stations for a large statewide network of radio and television stations. Originally known as Oregon Educational Broadcasting, it became the Oregon Educational and Public Broadcasting Service (OEPBS) in 1971. In 1981, OEPBS was spun off from the Oregon State System of Higher Education and became a separate state agency, Oregon Public Broadcasting. The former Portland satellites, KOAP-FM-TV, became the flagship stations. In 1993, OPB severed its last direct ties to the state government and became a community-licensed organization supported by the state of Oregon.