There was an episode of some scifi anthology show where interstellar FTL travel is achieved by a similar matter copying. Occasionally something goes wrong and

There was an episode of some scifi anthology show where interstellar FTL travel is achieved by a similar matter copying. Occasionally something goes wrong and the source is not "deconstructed" properly by the equipment so the procedure is for the transporter crew to terminate the original person. PS It was "Think Like A Dinosaur"