Two. One to hold the bulb and the other to rotate the planet.
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The question is irrelevant, since you couldn't find the dolls even if you knew how many. (Note: Well, this was a good joke in 1983-84. . . .)
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"Ten billion dollars and high cholesterol!"
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Billllyuns and billllyuns. Light bulbs are part of the interstellar "goo" that pervades our universe; they are star stuff.
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Five. Four to decide which way the bulb ought to turn, and . . .
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