David Suchet has been playing Belgian detective Hercule Poirot since 1989. After a 13-season run, Poirot, the mystery series based on Agatha Christie's novels, has come to an end. The series is now on Acorn TV, streaming online. David Bianculli reflects on the long-running show:  But since these are, absolutely, the last TV episodes featuring Suchet as Poirot, they do provide a satisfying conclusion to a very long-running viewing experience. The actor has grown into the role, sporting wrinkles to match the wisdom, and perfecting the twinkle in his eye whenever, as the detective himself would put it, Poirot has finally solved the case as only Poirot can. And think of it: The actors of the current movie Boyhood have gotten lots of praise for filming and playing their roles over a 12-year period. David Suchet, as Hercule Poirot, has done the same thing for twice as long. He's done it so long, in fact, that he's ending his run on a medium that didn't even exist when he started. Wrap your little grey cells around that…
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