My opinion, Columbo is loaded with "darker" esoteric messaging, symbolism and suggestion. This scene is in that set of Columbo scenes that are trying to tell us something beyond just cute shapes on the screens. I've made a few low-level attempts to freeze-frame and ponder that one, but never came up with an idea there.
I do not believe they inserted completely meaningless scenes for filler time. I do agree they probably had to extend a few scenes to include longer cuts, etc. But this one here means something. I believe this episode (Perfect Murder), Identity Crisis, Grand Deceptions, Deadly State of Mind and Bye Bye Sky High IQ are vehicles for deeper esoteric parallels I've always wondered about, and have my own ideas. I also think Commodore was one of these, and not just a "bad episode" as some suggest. I actually like that episode, but understand how some may not.
I recall somebody here mentioning this concept, and that they'd be interested in sharing what they thought about certain esoteric symbolism in ID Crisis. I can't find that post, but I'd like to hear more if that person is around. Or, if others have ideas.
"Oh and Raymond, I'll be watching Walking My Baby tonite". hehe
That scene in Make me a Perfect Murder has always struck me as odd. I mean there are scenes that are obviously put into some of the episodes (particularly the longer ones) to stretch the episodes out more, but that scene just felt unusual and surreal. Anyway i love the scene where he hounds Kay on the tv screens, another surreal scene in that episode.