Carla tells Norm, "We don't have a table six." But a few episodes ago in The Big Kiss-Off (1988), Carla sent drinks to that very same table number.
In the end scene, when Fraiser is ushering Sam away to the piano after he tries to unzip Rebecca's dress, Fraiser accidentally calls Sam by his actor's name ( Ted Danson ) when he says " Piano! Piano, Ted !"
When Sam talks to God, and shows him the picture of the young lady that he wants to leave with for a good time( flight attendant who has lay over). You can clearly see the picture is not her, as well as it not the size not the same the one she pulls out of her purse.
Sam reads 2 Peter 3:8 from the Bible but he has the Bible open to the center and 2 Peter is one of the last books in the Bible, much further to the back.