If the materials you want to show to your class are not available, contact the Reserves Dept. (streaming@library.umass.edu) to see if they can digitize or purchase what you need to show for your class. Gabe Stetson is happy to work with you.
Here is a set of links for media resources that UMass hasn't yet licenced but wants to keep track of for future consideration. Please let us know of any resources you would like us to consider.
In many cases we can buy or lease particular titles through these vendors.