My thought is that you made a great catch. Every time i think all the details have been analyzed to death on this forum, we keep finding new tidbits! Looks like overlooked by the prop department.

If you like that one here's another that you might get a kick out of. In the first regular season episode, "Murder by the Book", they display a beautiful portrait of the fictitious character, Mrs. Melville. If you look carefully at another episode, specifically, "The Bye Bye Sky-High I.Q. Murder Case", you will see that same portrait at the back of the main room where everyone is listening to Kenneth Mars talk. Look for it just after his talk is over and he goes back to his seat. He actually passes right in front of it.

Will check it out next time. Thanks! and i'll try myself to look for these little details. It would be interesting if someone ever notices a prop from Columbo in another Universal tv show from the 70's.

Actually I have, I think, I believe the Archer statue (from Death Lends a Hand) was in something else. When I figure it out I'll let you know. It may have been from a Banacek, just not sure. (By the way, my M. stands for Mark.)