The Night of the Headless Woman - S3-E17
Continuity mistake: When West comes out of the water, he is soaking wet, but when he sneaks onto the stagecoach and fights with the driver, both his hair and clothes are dry.
The Wild Wild West (1965)
1 continuity mistake in The Night of the Headless Woman
Starring: Robert Conrad, Dick Cangey, Ross Martin, Whitey Hughes
The Night Dr. Loveless Died - S3-E4
Continuity mistake: In the opening scene, a cowboy sitting atop the balcony above Big Brad's Bar gets up and approaches the balcony's edge twice.
The Night Dr. Loveless Died - S3-E4
Trivia: Dr. Loveless' uncle's name, "Liebknicht", is, aside from the addition of the letter "k", German for "Loveless".