Good news: The Cherry Jones/Zachary Quinto "Glass Menagerie" was indeed filmed; or rather, taped. The Theatre on Film and Tape Archive produced a videorecording of the play in February 2014, and it is available to be viewed in the TOFT screening room.
P.S. For those who weren't already aware of it, the Performing Arts Library reopened to the public this past May, and the TOFT screening room has been open for advance appointments since then. Walk-in appointments will once again be available starting this coming weekend, on Sep. 18.