Continuity mistake: Martin is sitting on the coffee table hugging the puppy who is nuzzling his face. He says "No" to Roz and in the next shot the puppy is no longer near his face.
Continuity mistake: Frasier has a college catalogue that he takes over to the phone to call for information. Between the time he puts the catalogue next to the phone to the time he makes his call, the page changes, even though he doesn't touch it.
Continuity mistake: Roz takes the puppy from Marty and puts her hands around its hindquarters, but in the next shot her hands are up around its front legs. There was no time for any change of position.
Continuity mistake: In class, Frasier passes a note to Niles who folds it in half. The teacher grabs it away from Niles, and unfolds it himself - but it is now folded in four, not in two.
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 ★