Continuity mistake: In every episode that shows the upstairs of the Bunker household, Gloria's bedroom is across from Archie and Edith's bedroom. The exception is the fire that occurred in the Bunker's bathroom, in this episode, the bathroom is across from Archie and Edith's bedroom. All the shows after this episode, the bedroom is now across from Archie and Edith's bedroom again.
Trivia: The LaSalle - a GM car produced in the 1930s - was immortalized in the opening credits when Jean Stapleton sang the line "Gee, our old LaSalle ran great." However, the line was somewhat slurred at first and people wrote in asking what she was saying. In later seasons the opening was refilmed and Stapleton sang the line slower and more phonetically so it could be understood.Jeff Swanson