When I started out in sitcoms, CBS had a number of successful ones, including The Beverly Hillbillies, Petticoat Junction, and Green Acres. While popular, they failed to appeal to a younger audience. They were eventually canceled all at once to make room for a lineup that had cross-generational appeal. The Mary Tyler Moore Show (TMTMS) premiered a week after Petticoat Junction was canceled, in its coveted Saturday-night time slot.
