Using Library OneSearch, search for Videos the same way you would search for Books. However, at the results page and on the left side of the screen, look for Material Type, then select either Audio/Video Streaming or Video (DVD/VHS).
For VHS playback equipment in the Science Library, ask at the Circulation Desk. In Olin Library, VCRs are available on the third floor in the Music Library.
External CD/DVD drives are available to borrow from the Science Library Circulation Desk as well as the Music Library on floor 3 of Olin Library.