Jill is cooking in the kitchen and puts uncooked spaghetti into a pot. The spaghetti disappears and reappears depending on the camera angle.
The term "neurosis" was removed from the Diagnostic and Statistical Manual of Mental Disorders (DSM) in 1980, 14 years before this episode aired.
At the end of the episode "The Route of All Evil", Brad and Tim are having a conversation at the dinner table and a camera crew member is reflected in the kitchen window.