Columbo (1971 - 1998, 2000, 2003) was icoic 70's detective, single man who deduction abilities and "Oh, there's just one more thing...". Storytelling invention - first is the crime and the guilty person show, then viewer tries to figure out what is the detail that went wrong. We know more than our hero with is raincoat - but we never quess it. Influence can be seen in polculture and all "Hercule Poirot" style detecitive series, most recent is Monk
Colombo,was a detective show on NBC from 1971-1978.He was always asking questions that drove criminals crazy,like "Oh sir,just one more thing"or One more Question."my wife says"? I can hear him now.RIP Peter Falk. You made our nights during those years, so enjoyable.