Continuity mistake: This is a mistake within a mistake: Niles and Frazier are trying to get the wrapped presents out of F.'s apartment and replace them with others, to play a trick on their dad. They are getting completely mixed up, and presents are being taken out and then returned by mistake, mostly by Frasier. At one point Niles has a pile of gifts which he puts down on the table behind the couch - the shot shows him holding them, but the next shot shows a completely different pile of presents, even though it is supposed to be the same pile. Frasier picks this pile up. It soon changes again in the next shots.
Ain't Nobody's Business If I Do - S5-E11
Continuity mistake: Frasier and Niles are looking at the report the private detective gave them on Sherry - Niles is holding one sheet apart from the others but as he says "it does bode well for Dad", the papers are all together again, with no real time for this to occur.
Three Dates and a Breakup (2) - S4-E20
Continuity mistake: While Frasier and Marty are in the kitchen arguing about Sherry, his can of beer moves from the right side of the counter quite a distance over to the left of the dishes he broke. The sugar bowl and jam pot also change positions during the same shots.
Continuity mistake: Frasier is holding a plate of food in the kitchen, but after Roz comes in with the exploded cherries jubilee all over her, the food on his plate has changed completely. It could not have been affected by the cherries jubilee explosion as he had his back to the door when that happened.
Shutout in Seattle (2) - S6-E24
Continuity mistake: After Bulldog loses his job he goes to Roz for a hug. He puts his right arm around her upper arms but the next shot shows his arm around her shoulder, with no time to have shifted naturally.
Continuity mistake: When Niles goes to take off his pants he looks over at Eddie who is sitting on the right side of the armchair. The next shot shows Eddie getting out of the chair and onto the footstool - however, he is climbing out of the left side and he had no time to shift position. (00:01:55)
Continuity mistake: When Frasier and Niles are in Donny's office, in some shots his towel is next to his briefcase, in others it is on top of the briefcase. (00:04:40)
Continuity mistake: When Frasier is offering to help Lorna carry her books, her purse switches from her right shoulder to her left arm and back to the right from shot to shot.
Continuity mistake: Near the end of the show, Dr. Nora's mother is chasing Nora through the corridors of KACL, behind the windows of Frasier and Roz's booth. We can see them go by, from window to window. The shot then cuts to Frasier, looking horrified, and we see Nora's mother run by a couple of windows again - even though this could not possibly have happened in real time.
Continuity mistake: When Frasier and Niles are in the restaurant, Niles is under the influence of medication. He lays his head down on his arm just as one of the geniuses arrives and greets them. In the next shot, his head is lying right on the table, with no time for him to have switched positions.
Continuity mistake: When Marty, Niles, and Frazier return from the taping of the Antiques Road Show, Marty hangs up his blue windbreaker and then Frazier hangs up his gray raincoat, obscuring Marty's coat. But throughout the scene, all we see is Marty's blue jacket - where did the raincoat go?
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).
Continuity mistake: Early in the show Niles and Daphne are in the kitchen talking while Daphne makes tea. She puts the lid on the teapot and in the next shot the lid is on the counter again.
Continuity mistake: During the opening scene, Niles is on the phone to his chef, and behind him, on a table, are two champagne glasses (beside the phone base)and 3 candles. He hangs up the phone, moves away and 2 of the candles and the glasses have disappeared, and the phone has been pushed further over. He sits on the couch, then goes to get the ironing board - when he sets it up we see the glasses and candles are back.
Continuity mistake: In the opening scene, Niles goes to pour sugar on his spoon and the top of the sugar dispenser comes off and disappears - it looks like it goes into his lap. We don't see the top again until after the teenager says, "Aren't you going to yell at them?" and suddenly it is in plain view, on the right of the table.
Continuity mistake: When Roz opens her gift of a bracelet from Frasier, he puts it on her and she feels guilty, so she goes to call Luke - but as she leaves the table, there is suddenly no sign of the box the bracelet came in.
Continuity mistake: Marty gives Niles a mug which says "World's Greatest Psychiatrist." He puts it down on the coffee table with the lettering facing the camera. He then leaves with Daphne and a few shots later, we can see the mug again, but it is turned around and we see the blank side. When Frasier leaves the apartment, it's back in its original position. Nobody ever touched it.
Something Borrowed, Someone Blue (1) - S7-E23
Continuity mistake: Just before Simon returns from California, Roz's purse is lying flat on Frasier's coffee table. As she goes to pick it up, the purse straps are sticking up, even though no one went near it between shots.
Continuity mistake: As Frasier tells Bulldog that he shouldn't feel threatened by Clint, we can see the edge of a clipboard moving on the bottom right screen, where Roz would be. However, in the shot before that, Roz had pretended to punch Bulldog - she had nothing in her hand and wouldn't have had time to pick anything up.
Three Dates and a Breakup (2) - S4-E20
Continuity mistake: When Marty is explaining why he broke up with Sherry, we can see his blue jacket hanging up on the book by the fireplace - as he says "I said it back", the coat is no longer there. It does reappear in later shots.
Answer: In the last episode, they explained that Tossed Salad and Scrambled Eggs is a metaphor for the mixed-up people to whom Frasier dispenses his radio psychiatric advice.