Continuity mistake: When Arnold is sitting in the kitchen with Dino's personal stuff, Grandpa offers him a shrimp cocktail, and Arnold turns his head to look at it. In the next shot, he is suddenly looking inside the box. (00:06:45)
Audio problem: When Arnold says, "It's almost like Dino left his whole life in my hands," as Grandpa responds with, "Not his whole life," his mouth doesn't move until the word "life." (00:06:58)
Answer: The show is based in present day times. Plus most cars aren't old fashtioned, I recall seeing a limo and not to mention a cherry picker, etc.