Move episode by episode through Seasons Six and Seven, the concluding seasons of the Original NBC Series. This is Vol. 6 in the series of Columbo Case Files ebooks, with the TV Movie volumes still to come. For now, enjoy guest murderers like the redundantly over-the-top William Shatner, the wry Joyce Van Patten, the sharp-tongued Ruth Gordon, and others including Louis Jourdan and the excellent Clive Revill. The final episode of the Original Series — “The Conspirators” — receives extended treatment. I came to appreciate several of these episodes more even than when I started, and I think you’ll like it too.