And the Dish Ran Away with the Spoon (1) - S8-E1
Continuity mistake: Niles says on Daphne's wedding day that he told her he loved her on his 3 day anniversary, making Daphne's wedding his 4 day anniversary. At Nervosa, Mel says it's their 4 day anniversary, when at this point one more night has passed and it's now 5 days since they married.
And the Dish Ran Away with the Spoon (1) - S8-E1
Continuity mistake: Daphne is working on returning her wedding gifts and suspects her brother may have been tampering with them. She crosses her arms and says "Simon" angrily, but in the next shot her hands are holding the sides of a gift box.
And the Dish Ran Away with the Spoon (1) - S8-E1
Continuity mistake: Frasier is in Donny's office, and Donny is holding a little wedding cake groom. He covers the groom with his hands while he's talking, but when Frasier says, "Daphne realizes you went to great expense," the little bridegroom is visible again, even though in real time it couldn't have happened.
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.