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Fred and Lamont Sanford (Redd Foxx, Demond Wilson) head to a mobile clinic to get free x-rays. The results reveal that one of the Sanford men has TB, but the x-rays are mixed up and neither Fred nor Lamont knows which of them is the unlucky party. Naturally, Fred goes through one of his elaborate "I'm comin', Elizabeth!" death's-door routines, but things take an unexpected turn when the x-ray results are sorted out. Based on a 1970 episode of the British sitcom Steptoe and Son, "A Matter of Life and Breath" first aired on February 11, 1972.