Bad Medicine - S1-E8
Revealing mistake: Footage of the Diablero standing up after killing the first rich woman is re-used in the killing of the next rich woman, evident by the shot of the same curtains in the background for both murder scenes.
Kolchak: The Night Stalker (1974)
1 revealing mistake in Bad Medicine
Starring: Darren McGavin, Simon Oakland, Jack Grinnage, Ruth McDevitt
They Have Been, They Are, They Will Be... - S1-E3
Continuity mistake: While Tony Vincenzo is eating, his butter knife instantly turns into a fork in the next shot.
Carl Kolchak: You must really enjoy your work.
Nurse Eisen: A well-done autopsy is a joy forever.
More trivia for Kolchak: The Night Stalker