Continuity mistake: When Frasier and Martin are in the kitchen talking about Daphne's wedding gift, Marty is holding an open jar of beef jerky. In the middle of the scene, the lid is suddenly back on it, even though neither of them had time to do it.
Continuity mistake: Frazier and Marty go into the kitchen. Frazier gets out a blue bottle of water, uncaps it, puts the cap on the counter - and in the next shot we see him do the same thing again. He then goes into the living room and mistakenly tells Daphne he is going to pay for her wedding. She hugs him, and he is still holding the bottle of water. The next shot of her hugging him shows nothing in his hands, and when she lets him go, he whirls around and grabs his bottle of water off the bookcase.
Continuity mistake: Roz and Daphne are standing in front of the elevator talking about the wedding. Daphne is holding Frasier's choice of a bridesmaid's dress. In one shot, Daphne is holding it over her arm, but when she turns toward the door, with no time to change position naturally, she is holding the dress by the hanger.
Continuity mistake: While Frasier and Martin are in the living room talking about Frasier's offer to pay for the wedding, his blue bottle of water moves from one end of Marty's little table to the other.
Continuity mistake: When Marty comes into the living room, he puts the container of jerky down on top of the book on the right side of the coffee table. A few minutes later, when Donny takes a piece, the container is on top of the book on the left side of the table. No one went near it in the meantime.
Continuity mistake: Near the beginning , Daphne is talking to Frasier about her mother. As she says "she did bite through a kitchen spoon", her hand is up on her stomach, but in the next shot it's on her hip, with no time for a shift in position.
Visible crew/equipment: As Frasier walks into the kitchen near the start you can see a crew member with arms folded at the side of the table on the other side of the lamp. (00:03:55)
Continuity mistake: Frasier is opening a bottle in the kitchen while talking to his father. He takes the cap off the same blue bottle twice. (00:05:07)
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.