Favourite Columbo episdodes?

Any of y'all freaks watch Columbo? Me and my old lady have been watching through them all and we're up to season 7. I tell you, I love it. It's so formulaic, basically every episode is the same shit, but I love it all the same. Peter Falk elevates that schtick to high art, they had some incredible guest stars, the music is great, I just love it.

The way I see it, you need a few things to go right for a great Columbo...

Favourite Columbo episdodes?