Darrin is perplexed when Samantha suddenly gains weight -- several tons, in fact -- while outwardly remaining her usual thin self. Dr. Bombay diagnoses the ailment as "Gravititis Inflammitis," then helpfully prescribes an antidote. As usual, the cure is worse than the disease; now Sam is so light of weight that she literally floats away. And also as usual, the entire situation serves to benefit the ad firm of McMann and Tate. Written by Michael Morris, "Samantha Is Earthbound" originally aired on January 15, 1972, the same day that Bewitched moved from its Wednesday-night timeslot to a Saturday berth opposite CBS' All in the Family. ~ Hal Erickson, Rovi