Visible crew/equipment: Jessica asks Carrie what number they live at - as she does so a tape marker is visible on the floor. (00:06:50)
Continuity mistake: When Doug and Arthur are sat at the dinner table, Arthur's hands go from on the table to clasped between shots. (00:07:45)
Revealing mistake: During the scene when Doug is "out with the boys" driving in Spence's car, you can tell they are actually in a studio using a green-screen because the stage lights reflecting off the car don't move. (00:36:00 - 00:36:35)
Other mistake: When Doug and Carrie go to visit the new neighbour, Jessica, Carrie tells her that they live at #8013; however many other episodes we see the numbers 3121 on the Heffernan's door and later learn that the Heffernan's live at 3121 Aberdeen Street in Rego Park. (00:28:35 - 00:29:35)
Chosen answer: That is most likely the case.
Ssiscool ★