Am I mistaken or is this the episode the one where Columbo attempts to switch over between two reels on a projector and messes it up, or was that in a different episode?

Reason I ask, is that I watched this episode on Netflix recently and was convinced that this scene was missing from that version of this particular episode. Perhaps i'm getting confused with another episode entirely, which is quite possible!

No, that would be Make Me a Perfect Murder.

Thank you, Irene.