Revealing mistake: At the end of the episode before Tim opens the front door for Julie Zwicky, you can see the actress' silhouette in the window pane for several moments before she rings the doorbell, showing her to be waiting for her cue.
Home Improvement (1991)
1 mistake in Jill's Surprise Party
Al: Say, do you think they call it a nail gun because it shoots nails?
More trivia for Home Improvement
Question: In one episode, Tim's mother says that she raised five boys. Three of those are Tim, Jeff, and Marty, but what do we know about the other two? There's another episode where Randy mentions his uncle that doesn't talk to their family anymore.
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Answer: Tim's other brothers are named Rick and Steve. They never appeared on the show, and were only mentioned in passing.
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