Radio Wars - S7-E3
Continuity mistake: When Marty comes into the living room and says, "Man, they got you good", Frasier has his cup and saucer in his hand. When the shot changes, though, the cup and saucer are sitting on the table, a few inches away from his hand.
Radio Wars - S7-E3
Continuity mistake: Frasier is sitting at his table composing a letter to Carlos and the Chicken, while talking to Niles about it. The two large reference books on the table in front of them change positions during the scene, without them touching the books.
Radio Wars - S7-E3
Continuity mistake: Similar errors occur in two different scenes: in the first breakfast scene, the coffee pot is sitting on the table but in the next shot Daphne is pouring herself a cup, with no time for her to have naturally picked it up. Later in another scene, Niles is there for breakfast, picks up the pot, and pours himself some coffee. In the next shot, the pot is on the table, again without enough time for him to have put it back.
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.