Time Enough at Last
That was with Burgess Merideth as the librarian, IIRC.
Is that’s the one with Burgess Meredith who, when the SHTF, finally was able to read as much as he wanted, and his bitchy wife was gone? Then he stepped on his glasses?
That’s my favorite, too. Because of that episode I hoard my old eye glasses. “Just in case”, you know.