We're all (mostly) familiar with the reappearance of Mrs. Melville in "The Bye Bye Sky High IQ Murder Case", but I'm always on the look out for other instances of the Columbo Prop Department slipping in repeat items. I believe I've found another one. While watching William Shatner slog his way through "Butterfly in Shades of Grey", I noticed his tie in the opening scene - a maroonish-red with a blue and white pattern on it and I realized I'd seen this tie before somewhere - and it's not in my closet. Suddenly, it hit me. It was the same tie the fetching Faye Dunaway had bought for our favorite detective in the previous episode, "It's All in the Game".
Nice catch!! I never noticed that. Speaking of Fielding Chase, I strongly suspect that his house is also Dr. Joan Allenby’s residence from “Sex and the Married Detective (with the sunken loving room and two-sided fireplace).