PBS is now offering free multimedia educational content on iTunes U, the educational area of iTunes. Housed in the “Beyond Campus” section, the offerings–video, lectures, interviews, teacher guides–come from KQED, WETA, WNET and WGBH.
Current - For people in public media
Current (https://current.org/2008/01/pbs-puts-free-educational-content-on-itunes-u/)