Revealing mistake: When Topanga is "naked" under the cover, at one point, you can see a large corner of her bra. (00:02:58)
Revealing mistake: The firefighters, apparently the fastest men in the universe, appear no more than 10 seconds after the fire starts.
Revealing mistake: When the noir version of Eric is talking about the noir version of Jack as he is playing the piano, you can see Jack is just tapping his fingers against the piano keys and not actually striking them. (00:05:33)
Revealing mistake: When Cory opens up the curtains of his bungalow to show Topanga the beach, you can tell the background is just a backdrop, as there are no waves approaching the shore. (00:10:36)
Revealing mistake: When Eric picks up Cory to show him the "For He's A Jolly Good Fellow" dance, Cory screams that Eric is going to knock over the candles, upon which one of the candles on the desk is knocked over and sets fire to the curtains. If you look closely, neither Eric or Cory bump any of the candles nor the desk they are on, the candle just tips over on its own, suggesting an off-screen crew member used wire or string to pull the candle down. (00:07:18)
No Such Thing as a Sure Thing - S7-E4
Revealing mistake: When the family is eating dinner, throughout the scene you can see Jack dabbing his fork into his mashed potatoes and raising the fork to his mouth with little to no potatoes on it in order to give the illusion that he is eating. (00:03:57 - 00:05:05)
Revealing mistake: When Eric tells Cory and Shawn that the hot chocolates were $4, Cory looks up at the prices and says "that's the retail price." As the scene and the rest of the episode go on, if you pay close attention to the sign that has all the prices, hot chocolate is not an item.
No Such Thing as a Sure Thing - S7-E4
Revealing mistake: The pitchfork that the Amish girl throws at Eric at the end of the episode is obviously made of rubber, as it wobbles when he catches it.
