Article continues below advertisementJohn O'Hurley knows a good thing when it comes around. After appearing as J. Peterman on the NBC sitcom Seinfeld, the actor is grateful for his time on the comedy series, which is now streaming on Netflix. "There's no one who has a deeper sense of propriety than Jerry [Seinfeld]. Jerry knows when to do something and when not to do something," O'Hurley exclusively told OK! while promoting The National Dog Show, which airs after the Thanksgiving Day Parade on NBC on Thursday, November 27. "In that regard, I think he's probably a wonderful father as well.