Continuity mistake: Niles is filming is father in his recliner, trying to record his life story for posterity. Marty fakes a heart attack or death - and lies back in his chair with his left arm by his side. In the next shot his arm is crooked up around his head, but with no time for him to have moved it.
Continuity mistake: Near the end of the show, Roz and Frasier are at the radio station, in his booth. There is a clipboard lying on the console to the left. Roz goes to her booth (without the clipboard) and Bulldog bursts through the door on the left. The clipboard has disappeared. Shortly afterwards Roz goes back into Frasier's booth and the clipboard is back where it was.
Continuity mistake: When Roz and Daphne are in the kitchen, the tea cup turns about 45 degrees so we see much more of the flower pattern from the same camera angle. Neither of them touched it.
Continuity mistake: While Daphne and Roz are talking in the kitchen, Daphne takes a carton of milk out of the fridge - and puts it down on her left - in the next shot it is on her right (with no change of camera angle).
Answer: Nanny G (Nanette Guzman - played by Laurie Metcaf) has been a children's entertainer for twenty years, and tells Frasier, "Do you know what it's like to play the same character for 20 years?!" The joke is that Kelsey Grammer has been playing Frasier Crane since 1984, when the character first appeared on "Cheers", so Kelsey in real life has been doing just that!
Super Grover ★