The Night of the Golden Cobra - S2-E2
Revealing mistake: Indentations from West striking the board with his knuckles are seen before he hits it with his fist.
The Wild Wild West (1965)
1 revealing mistake in The Night of the Golden Cobra
Starring: Robert Conrad, Dick Cangey, Ross Martin, Whitey Hughes
The Night of the Brain - S2-E21
Revealing mistake: Mr. Braine screams as his steam-powered chair crashes into the bandstand. If you look closely at the next shot, just before the explosion, you can see that the dummy now in the chair has its head bowed forward. It also has light brown hair, rather than Mr. Braine's silver hair. (00:47:10)
Trivia: Due to the rigorous stunts he performed, actor Robert Conrad would often rip out the seat of his already too tight pants.