Mike sets a ketchup bottle to the left of two soda cans. When the camera angle switches to a side view, the ketchup—which should now appear behind the cans—now appears to their right.
In the final scene, Maggie sits at the kitchen table, feeding Chrissy, with just a baby food jar in front of them, but in the final shot before the credits roll, a coffee mug suddenly appears in front of Maggie.
In this episode, Jason and Maggie are celebrating their 20th anniversary a few weeks late. This episode aired in early 1989, meaning they got married sometime in 1969. However in Season 2's "The Awful Truth," 1968 was quoted as being the year Jason & Maggie wed.
When Jason and Carol are talking at the breakfast table, a half-full glass of orange juice suddenly pops out from behind the sugar dish and into plain view.
In the part where CJ is getting undressed, we see a far away shot of her where she is completely naked behind the screen, but when we close up on her, she is wearing her shirt again, unbuttoning the same buttons as before.
The opening titles break from the normal ones from this and last season. In the final shot, when the family heads for the house, Maggie remains and tells the others that it's time for her birth, the only time they ever talked in the titles. They help her into the house and the scene after the commercial bump segues directly from this.