Hot Ticket - S6-E4
Character mistake: In the last minute of the show, Frasier and Niles set to leave the bar. Frasier puts money on the bar to pay and the wife comes over and talks to them. Frasier moves the remaining money to his other hand. You can see his hands slightly twitching, and he accidentally drops the money on the floor, but acts like he is putting it in his pocket instead of picking it up, and leaves.
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.