“For 22 years [Wally] Feresten has been perched next to the live-telecast’s camera, in a wide-legged athletic stance, holding at shoulder height white 14-x-22-inch poster-board cards hand-printed with lines for the performers. Attuned to the rhythms of each actor, Mr. Feresten lifts the cards and drops them into the hands of an assistant. He never looks away from the performer.”