Continuity mistake: The outside view from the Bundy sliding doors/patio is different in the opening and most scenes from the shows. In fact, I can't think of any time it's the same.
Married... with Children (1987)
1 continuity mistake in show generally - chronological order
Starring: Christina Applegate, Katey Sagal, Ed O'Neill, Amanda Bearse
Genres: Comedy
Movie Show - S7-E21
Revealing mistake: When everyone is standing at the snack bar eating all the food you can plainly see all the candy boxes are empty and already open even though they were sealed when the cashier put them on the counter.
Peg: Hi honey. Did you miss me?
Al: With every bullet so far.
Trivia: Ed O'Neill is only actor to appear in all 260 episodes of the show.
Question: What did Al remove from The Lundys' car to cause it to crash?
Answer: It was one of the hoses connected to the engine, nothing specific, but to indicate that Al tampered with the vehicle.