Yes, the sad news is true. Dozens, maybe hundreds of old courses are gone from the newly remodeled UC Berkeley course podcast site. The new site is definitely snazzier and easier to navigate, but much of the older content is gone.
I sent an e-mail to the site’s webmaster, who replied, “We have archived the older lectures and will keep them safe. Unfortunately they are no longer available to the public via webcast.berkeley.” He left open the possibility that donors might be able to fund the migration of the older lectures to the new site, but at least for now treasures like Margaret Anderson’s history courses are no longer available.
Unlike some of the open access courses on the web, the course podcasts from the University of California campuses at Berkeley, Los Angeles and San Diego have always been primarily for their own students, and the public access is merely a byproduct. So be warned. And if you see a course you’re interested in, download it while you can.