George Washington Zapped Here (2) - S8-E22
Other mistake: This episode is merely a redo of the Ben Franklin episode in Season 3. The plot is the same. The dialogue in many parts is EXACTLY the same. The courtroom dialogue is the same as the courtroom episode of Ben Franklin. In both episodes, Samantha acts as the attorney even though a lay person is prohibited by law of practicing law... pretending to be an attorney.
George Washington Zapped Here (2) - S8-E22
Continuity mistake: The front door which is usually green is now white.
School Days, School Daze - S8-E23
Continuity mistake: After the teacher writes the equation on the board for Tabitha to solve, it keeps changing in appearance; the small loop at the bottom of the 3 comes and goes depending on the shot. (00:06:45)
Samantha's Witchcraft Blows a Fuse - S8-E25
Continuity mistake: The hole (square cut out) is visible in the carpet before they fall through. Also, when Dr. Bombay "cures" Samantha and she floats, the hole in the floor beside the couch is gone. Dr. Bombay fixed the floor in the next shot (when asked). The floor without the hole is visible when Dam floats up and when Darrin and Bombay walk over to her.
Samantha's Witchcraft Blows a Fuse - S8-E25
Revealing mistake: When Darrin brings the ladder around to the front of the house, it's obvious this is not the actual house but a stage set; the background is obviously a painting and the driveway/garage have disappeared. Further the outside and windows are too narrow to be the actual house. The den is larger than the small facade in the scene.
Samantha's Witchcraft Blows a Fuse - S8-E25
Revealing mistake: When the officers pull away, the shadow of the car is visible on the painted backdrop of trees. This isn't the neighborhood of Morning Glory Circle with the Kravitz House across the street. The shadow reveals it's a stage backdrop. Further, this is basically the same as Allergic to the Macedonian DoDo Bird from Season 3, with the same DoDo Bird costume.
Samantha's Witchcraft Blows a Fuse - S8-E25
Other mistake: When the police pull up outside the Stephens' home, it is a set shot with fake background. The "road" doesn't match the outside of Stephens' neighborhood shown throughout the series with the Kravitz house across the street (and not a pine tree forest as shown here).