Al Rosen's last credited appearance as Al. He would make three more appearances as Al in 1989, all uncredited.
Frasier's remark about Carla, Carla's psychic and Lilith stirring a pot is a reference to the "three witches" in Shakespeare's Macbeth.
Sam makes a remark to Rebecca asking if robin colcord is gay and she says nooooo ,However in real life he was gay