Creeps By Night. An episode entitled Those Who Walk In Darkness. This one has real star power. Peter Lorre and Boris Karloff. A scientist losses his sight from an experiment gone bad. Dr. Karloff wants to help him out, for a price.
X Minus One. Episode 37, C-Chute. An Earth space ship gets taken over by the Clohrons. The passengers try to figure out a way to fight back and return to Earth.