This episode shows Denny Crane resisting going to a synagogue and acting out while in a service. In fact, the actor William Shatner was born in the Notre-Dame-de-Grâce neighbourhood of Montreal, Quebec, Canada to a Conservative Jewish household. He is not an active follower of the Jewish faith now, however.
Julie Bowen was actually pregnant in this episode and used props to cover her stomach because on the show she was just becoming pregnant and not supposed to be showing yet.