In the winter of 1962, a time of three gargantuan broadcast networks and a power-wielding block of national advertisers, a relatively tiny ornament called Mr. Magoo's Christmas Carol would herald a family holiday TV tradition that has all but slipped into obscurity in the wake of the numerous Christmas specials that it inspired. Now animation director Darrell Van Citters, in a meticulously researched and delightfully engaging story-told...