Visible crew/equipment: When Frasier and Daphne are sitting talking in the sitting room, Frasier stands and the camera angle shows the fake wall above the fireplace - you can see the flue and that the wall stops just over where the shot normally finishes. There is visibly no proper wall behind the fireplace, you can see clear through to the construction behind.
Visible crew/equipment: When Frasier is getting ready to leave his booth while Bulldog starts his show, through the door on the left we can see a fairly thick white cable suspended in the air. It is visible for a couple of shots, but when Frasier opens the door to leave, it is gone.
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 ★