Riding the Video Range

<p> In June 1949, Hopalong Cassidy. Then Roy Rogers, the Lone Ranger, Zorro, Davy Crockett, the Cisco Kid, Matt Dillon, Bat Masterson, the Cartwrights, Hec Ramsey, Paladin ("Have Gun Will Travel")--no television genre has generated as many enduring characters as the Western. <I>Gunsmoke, Death Valley Days, Bonanza, Maverick,</I> and <I>Wagon Train</I> are just a few of the small-screen oaters that became instant classics. Then shows such as <I>Lonesome Dove<