Revealing mistake: When Carl, Steve and Mr. Looney first get locked in the bomb shelter and the door slams shut you can see it bounce back slightly. It doesn't stick closed.
Family Matters (1989)
1 revealing mistake in season 6 - chronological order
Other mistake: In this episode, they have a leak in the roof. Yet, the house is a two story house with an attic. So it should not be able to leak into the living room. Also, when Carl and Eddie go up to fix the roof, Eddie falls through the roof and ends up on the living room couch. Again, two story house with attic. Should not happen.
Carl: Go home! Go home! Go home!
Steve: I don't have to take this. I'm going home.
Trivia: When this show first went into syndication, a market in New England declined to pick it up, thinking it wouldn't be popular with their demographics. They ended up providing the show for free with the agreement that the market would end up paying for the broadcasting rights if the show reached a certain ratings threshold.
Question: Is it true that the show's set was burned down? Either way, why was the show ended so suddenly (before Laura and Steve's wedding was even shown)?
Answer: It was just cancelled. Read more here: http://www.kellie.de/end.htm.
Myridon