In the previous episode, Lucy Gets Chummy with the Neighbors (1957), the Ricardos' new Early American furniture is seen for the first time. The living room suite includes a relatively short two-person couch with end tables at either side. In this episode, the end tables are gone, and the couch is about twice as wide as last week.
When Lucy puts the bills on the lazy Susan a piece of tape is visible to keep the bill stuck to the middle of it.
At the 17:40 mark, when Lucy is tilting the box of chicks to let them out for feeding, just before she sets the box back down, one little chick runs under the box. You can tell the chick is stuck under the box for the rest of the scene because the box does not fit flat to the floor. It is raised approximately 1 chick-height off the floor.
When Little Ricky comes in the front door to find the chicks, a hand and the shadow of a stage hand assisting him is visible as he opens the front door.