Continuity mistake: Frasier is talking to Luke in the restaurant early in the show. Luke's hand switches its position several times from shot to shot - from one hand on the table to both hands on the table and then back again.
Continuity mistake: Roz goes to Frasier's to tell him Luke has been seeing someone else - while they are drinking in the kitchen, the level of her drink changes without her drinking or having a refill.
Continuity mistake: When Luke and Frasier are talking in the restaurant, and Frasier asks, "So Luke, you're a boat enthusiast?", his forearm is resting on the table. When the shot cuts back to him, only his hand is resting on the table, with no time for him to change position.
Continuity mistake: When Frasier and Luke are on Luke's boat, Luke is holding a book and some yellow papers while they talk. Sometimes the sheets are on top of the book, and sometimes they are underneath the book.
Continuity mistake: Niles is sitting at a table in Cafe Nervosa looking at a magazine - he has a page folded back and we can a large photo on the page. When Roz comes over to use her cell, the shot goes back to Niles and now he has the mag opened at a different page. There's another change when Frasier comes over to use his cellphone. At no time did Niles actually turn a page or even have time to do so.
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: While Marty is sitting with Eddie on his lap and talking to Niles, the dog's blue kennel tag goes from above Marty's hand to under Eddie's chin from one shot to the next.
Continuity mistake: Throughout the Christmas parade we can see that the headphone/microphone is on the left side of Frasier's head. During the first break just after one of the crew members is telling Mary that her improv is really good he tells Frasier to lighten up. Just after he says this you can see that the headphone/microphone is now on the right side of Frasier.
Continuity mistake: Kelly comes over to Frasier's to read a mock script for the Xmas parade Frasier wants to co-host. She puts her purse next to her on the couch but never opens it. Suddenly reading glasses appear next to the purse, which Kelly subsequently puts on to read.
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.
Continuity mistake: Frederick is visiting and sitting on Frasier's couch with headphones on, playing a Gameboy. Frasier pulls off Freddy's headphones, which then lie around his neck while Frederick continues to hold the Gameboy. In the next shot, the headphones and Gameboy are on the coffee table and Freddy is sitting quite a bit to the left of them.
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.
Character mistake: When Kenny's wife walks through the door, Frasier says "Aw Janet come on" instead of calling her Janice. (00:11:41)
Continuity mistake: During the opening credits, Frasier and Roz are in Cafe Nervosa talking, and Niles joins them. As they talk, Roz's paper napkin goes from being scrunched up to lying flat, to crumpled, from shot to shot.
Continuity mistake: While Frasier is singing on-stage to Monica, a shot shows Roz from the back, and her left hand is on the table - but in the next shot her hand is stretched out holding her date's hand.
Docu.Drama - S8-E16
Continuity mistake: When Frasier is in the conference room with Roz, his binder changes from shot to shot. Sometimes there are 4 brightly coloured tabs at the top, sometimes only 2. The same shots show a change in the papers on the table too.
Docu.Drama - S8-E16
Continuity mistake: When Martin is eating at the coffee table, you see the front of the tomato sauce/ketchup bottle, then the back, then the front again. Also the spice that was on the table moves without anyone touching it.
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.