Continuity mistake: Just before the closing credits, Marty opens his gift from Frasier - a dressing gown, which he puts back down on top of the box in a disorganized heap. By the end of the scene, a shot shows the dressing gown neatly folded in the box.
Continuity mistake: At the beginning of the show, Frasier and Niles are in Cafe Nervosa and Roz comes in, with lots of Christmas gifts. She manages to unload them, take off her coat and get into a chair between the guys - all in a couple of seconds. It all happens too quickly for "real time".
Continuity mistake: Frasier's in the toy store and another customer comes in with a carrier bag of educational toys he bought elsewhere. As Frasier tries to talk him into selling him the toys, some shots show just the bag with the toys in it and other shots show a roll of green wrapping paper visible about 6 inches above the bag.
It's Hard to Say Goodbye If You Won't Leave - S3-E10
Continuity mistake: When Frasier and Kate are in the airport, sitting down and talking, her arms switch back and forth from being folded to unfolded (holding her boarding pass). This happens a couple of times, without time for her to change position.
The Friend - S3-E11
Continuity mistake: While leaving Nervosa, Bob has the BBQ book in his lap. After Frasier leaves, the book is back on the table. (00:12:10)
The Friend - S3-E11
Continuity mistake: Frasier's new friend Bob pulls away from the table in Cafe Nervosa - his plaid hat is still on the chair next to him. In the next shot the hat is suddenly in Bob's lap, even though he couldn't possibly have put it there in that time.
The Friend - S3-E11
Continuity mistake: Roz is showing Frasier some faxes in his booth at KACL - as she holds them they are folded over. As she says "are you nuts?", the papers are flat in her hand, no longer folded over, with no time for her to have changed them.
The Friend - S3-E11
Continuity mistake: In the last scene, at the Cafe, Bob puts a dollar on the table in front of him. A waitress brings a cup and puts it down - the dollar has disappeared. In subsequent shots it reappears.
The Friend - S3-E11
Continuity mistake: Frasier and Bob are in Cafe Nervosa talking. Bob has a book in his hand. In another shot he is moving his hands around, even though there was no time for him to have put the book down.
Continuity mistake: Near the beginning of the show, Daphne drops Martin's eclair into a glass of orange juice. By the end of the scene, the eclair is sitting in a mug. No one moved it during that time.
Moon Dance - S3-E13
Continuity mistake: Early on in the show, Martin is trying to get Eddie to shake a towel off his head while Daphne stands behind the dog, folding laundry. In one shot she is standing with the folded towel over her arm; in the next shot she is folding it again. When she goes to the door, there is something red on top of the laundry basket, but when she returns the towel is back in the laundry basket (it's not the towel Marty put on Eddie's head: that's sitting on the coffee table).
The Show Where Diane Comes Back - S3-E14
Continuity mistake: Frasier is in the kitchen and gets the sugar out to sprinkle over the profiteroles. As he starts shaking we get a wider shot and we see there is sugar all over the stove top, pastries, plate, and counter - way more than there should be for the amount of shaking going on.
The Show Where Diane Comes Back - S3-E14
Continuity mistake: Frasier, Martin, Niles, Daphne, and Diane are having dinner at Frasier's and he gets up to get dessert. Niles offers to help him and puts his table napkin in his chair. As he walks towards the kitchen, though, the napkin is lying next to his plate.
The Show Where Diane Comes Back - S3-E14
Continuity mistake: Diane is sitting in Frasier's apartment, at the dining room table, talking with him. Her hands are in her lap in one shot and then up in front of her in the next - in mid-sentence.
A Word to the Wiseguy - S3-E15
Continuity mistake: The guy Niles and Frasier meet at the Cafe puts his coffee cup down twice between shots, after he has made the phone call and before he leaves. (00:09:20)
A Word to the Wiseguy - S3-E15
Continuity mistake: While Niles is talking to Martin about Maris's traffic tickets, the coffee pot goes from one side of the Lazy Susan to the other, with no one touching it.
A Word to the Wiseguy - S3-E15
Continuity mistake: Niles goes to KACL and walks into Frasier's booth - there is nothing on the console in front of Frasier - but then in a shot something shaped like a cellphone appears but in subsequent shots is gone again.
A Word to the Wiseguy - S3-E15
Continuity mistake: Frasier is on the phone at KACL with Jerome's girlfriend and the reflection in the glass shows him raising his hand to his face, but the next shot returns to him - his hand is on the console. There was no time for him to have shifted positions normally.
A Word to the Wiseguy - S3-E15
Continuity mistake: At the end of their meeting outside Cafe Nervosa, Jerome throws his red paper napkin on the table and they say their goodbyes. In the shot after he walks away there is no sign of the red napkin.
Continuity mistake: As Frasier is saying "too often we shrink from doing things we really want to do", the shot goes to Roz, and we can see the reflection in the glass shows that Frasier's mouth and hand movements do not match what he is saying.
Answer: It equals the record of James Arness of "Gunsmoke" for the actor who's played the same part on TV NOT in a soap opera. If you include soaps there are two main contenders - William Roache, who's been playing Ken Barlow in "Coronation Street" in the UK since 1960. Don Hastings has been playing Robert Hughes in US soap "As the World Turns" since 1960 as well.