Our Parents, Ourselves - S6-E12
Continuity mistake: At the end of the restaurant scene, where Frasier, Roz, Martin and Roz's mother are eating, Frasier puts his crumpled-up napkin on one side of his plate, but at the end of the scene it has mysteriously switched to the other side without being moved by anyone.
Our Parents, Ourselves - S6-E12
Continuity mistake: Early on in the show, Roz and Frasier are talking in her booth at KCAL. At one point she picks up a pencil and holds it for a couple of shots, but soon it has disappeared with no movement to put it down.
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.