Why Not, Exactly?

Those people, she says, aren't "accustomed to hearing word 'orgasm' on the air, and three o'clock in the afternoon is not the best time to air this."

That's Barbara Lewis of Mississippi Public Broadcasting, explaining why (responding to complaints) she kicked "Fresh Air" over to 4 o'clock. Or is she merely obeying the ancient principle that 3 o'clock--am or pm--is not a good time to start anything?