Revealing mistake: At the beginning during the Binford commercial, Tim falls off the ladder that they just set up and it's possible to see it's connected to the wall (so it will flip, but not fall over).
Home Improvement (1991)
1 mistake in Doctor In The House - chronological order
Al: Say, do you think they call it a nail gun because it shoots nails?
More trivia for Home Improvement
Question: Virtualy all of the tools that Tim and Al show on Tool Time are the Binford 6100 but obviously different tools each time,was there a joke regarding the number 6100?
Answer: In seasons 1 and 2, each Binford tool had a unique model number, but from season 3 onward, they were all numbered 6100 as a running gag.
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