The American Archive of Public Broadcasting (AAPB) is a collaboration between the Library of Congress and WGBH Educational Foundation, founded through the efforts of the Corporation for Public Broadcasting. The AAPB is a national effort to digitally preserve and make accessible historically significant public radio and television programs created over the past 70+ years. The archive comprises over 120 collections from contributing stations and original producers from US states and territories. As of April 2020, the collection includes nearly 113,000 digitized items preserved on-site at the Library of Congress, and 53,000 items in the collection are streaming online in the AAPB Online Reading Room.