Revealing mistake: A set crew member's hand is seen operating the floating pen in the witch's coven ceremony.
Kolchak: The Night Stalker (1974)
1 revealing mistake in The Trevi Collection - chronological order
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: If you want a job done right, you just have to foul it up yourself.
More trivia for Kolchak: The Night Stalker