The Night of the Inferno - S1-E1
Factual error: Liddy's six-shooter fires seven shots - three at West and four more at the bottles on the table after he escapes. (00:17:50)
The Wild Wild West (1965)
1 factual error in season 1
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".