Scenes from the unaired pilot episode are used in the flashback sequences.
Scenes from the pilot that were recycled into this episode were also used in the opening and closing credits, noticeable because Patty's hair is darker and shorter than usually seen.
In the unaired pilot from which the flashbacks for this show come, the setting is San Francisco instead of Brooklyn Heights and the characters of Martin Lane and Ross Lane are portrayed by Mark Miller and Charles Herbert, respectively.
The flashback scenes, particularly the ones portraying the stairway in the Lanes' house, show a different, slightly more expansive house than the one portrayed throughout the regular series.
The newspaper Martin Lane works for in the pilot episode from which the flashbacks for this episode come, given that the setting is San Francisco, is the San Francisco Express. Here, with a setting in New York City, Martin works for the New York Daily Chronicle.