Just One Last Question: Four Ways Columbo and the Net Promoter Score Are Alike…

Guest Post by: Adam Dorrell

15 September 1971: 40 years ago tonight Peter Falk starred for the first time as the rather crumpled TV detective Columbo (and that first episode was directed by Steven Spielberg, fact fans). Quickly becoming a primetime fixture of my youth, Columbo was my favourite TV ‘tec, at least until Starsky and Hutch came along.

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