I just recently noticed after many years of watching that the coffee cups used in My 3 Sons, Donna Reed Show, Hazel, Bewitched and some other Columbia type shows are all the same. They are white with a wide black band at the top. I hope they sterilized them as they transferred from one TV program to another. :lol:

Cereal boxes as well.

Also, I remember seeing the Stones' bedroom from Donna Reed on another series -- the closet doors were painted light blue. And of course, the Bewitched house pops up several times on other series.