Starring: Robert Conrad, Dick Cangey, Ross Martin, Whitey Hughes
The Night of the Underground Terror - S3-E19
Continuity mistake: After the third freeze frame, there is an outside fight. West has a major rip in his pants on the left inner seam from the knee to almost his waist - showing his white underwear during the fight. After the camera shot to Gordon and then back to West, his pants are now miraculously mended in the front and inner left leg area with a new large rip on the pant outer right seam from the knee to upper thigh.
The Night of the Avaricious Actuary - S4-E11
Continuity mistake: The letter from the Cyclops Insurance Company that Gordon pulls out of his pocket is folded, wrinkled, and well-worn. In the close up of the same letter West reads, the letter is white, pristine, and not wrinkled or folded.
The Night of the Infernal Machine - S2-E14
Trivia: West collides with the cook and sends him sprawling face-down in a huge platter of gelatin. Before racing off again, West quips, "Sorry about that, chef!" This was a winking homage to the 60s spy comedy Get Smart and its bumbling hero Maxwell Smart's famous catch-phrase, "Sorry about that, Chief!" (00:47:30)