The Night of the Flying Pie Plate - S2-E6
Revealing mistake: After they're carried inside and placed in chairs, one of the "unconscious" women moves her arm into a more comfortable position. (00:33:00)
The Night of the Flying Pie Plate - S2-E6
Continuity mistake: At the end, the wagon tailgate falls open during the scuffle with the bad guys. When West fights his way to the front and drives the wagon away, the tailgate has somehow tied itself up again. (00:48:00)
The Night of the Flying Pie Plate - S2-E6
Revealing mistake: When the townspeople spill out onto the town's streets after hearing the noise from the sky, the horses tied at the hitching posts never move nor flinch through the entire scene and are all in the same pose, indicating the horses are props and not real.
The Night of the Flying Pie Plate - S2-E6
Other mistake: When Gordon and the troopers bring the unconscious Venusian ladies in and place them in the chairs, the chairs are almost in the middle of the room. When the girls come to, the backs of the chairs are right up against a wall.
The Night of the Flying Pie Plate - S2-E6
Revealing mistake: The wires used to open and close the pie plate's entry hatch are visible.
The Night of the Flying Pie Plate - S2-E6
Visible crew/equipment: The shadow of a boom mic is visible on a table top in the saloon.