The exterior shot that's right after the credits, is an exterior shot of a real synagogue. That synagogue is actually in Flushing, Queens, where Fran is from
The title refers to the old Eddie Cantor Show from radio.
Fran asks Sylvia "what am I Jo?" Making a reference to Jo from Facts of Life on why she hasn't gotten married yet. Jo was the first of her group of friends to get married so Fran's reference doesn't make sense.