Papa and Me

I saw this as a teenager in the 1970s and it has stuck with me all of this time. I've been searching for the title for years and have only just found it. As I recall, the family lived in a New York apartment above their business (deli?). The grandfather habitually pranked the grandson as a way of expressing love. Would enjoy seeing it again, though perhaps my memory of it is just as good. Nice to finally know the title and actors names.