Visible crew/equipment: When Doug and his friends are moving the TV back downstairs, in the first shot just as Spence announces his finger is getting crushed, a camera operator with camera are visible on the left side of the screen. (00:12:45)
Visible crew/equipment: At the start, when Doug walks over to the corner armchair, the shadow of the moving boom mic is visible at the top, left side of the screen. (00:00:10)
Visible crew/equipment: After Arthur tells Doug he wants to move back in, Doug loses it and starts to rail, then as he shouts, "How about my kidneys, I have two," a piece of equipment is visible at the right side of the screen, before it moves back out of shot. (00:20:30)
Answer: Sara hasn't been mentioned in later episodes, and it suggested in later episodes that she never existed, and that Carrie is an only child. Kevin James stated that the producers couldn't think of an good plots to use with Sara, so they left her out.