Jodi Kearns, University of Akron, has made available online some newly digitised information literacy videos from the 70s to early 90s. She acknowledges the work of Lorelei Hoover, an LIS student, on this project. They are definitely interesting from a "then and now" point of view (including the hairstyles!).
Welcome to Eureka: http://www.archive.org/details/WelcomeToEureka
Library Research Methods: http://www.archive.org/details/LibraryResearchMethodsSrjc
Touring Goleman Library: http://www.archive.org/details/TouringGolemanLibrary
Library Music Research (embedded below): http://www.archive.org/details/LibraryMusicResearch
Surfin' Safari: http://www.archive.org/details/SearchinSafari
Library Collections and Services: http://www.archive.org/details/LibraryCollectionsAndServices
A Guide to Business Research: http://www.archive.org/details/AGuideToBusinessResearch