Sometimes TV advertisers shoot a little wide of their target audience. Last week my 3-year-old son and I were watching the early afternoon weekday cartoon festival that Nickelodeon calls Nick Jr. In the space of a half hour, an ad with Suzanne Somers plugging the exercise device Thighmaster came on twice. Now I don’t doubt that preschoolers are interested in achieving more shapely hips and thighs. I just question how many of these tykes have the credit cards at hand—or for that matter, the requisite dialing skills—to take advantage of this fabulous offer.