Cuts Keeping PBS in Peril 'American Family' Won't Return; Concerns Mount Over Program Costs, Funding By John Motavalli Faced with a major drop in corporate, private and government funding, lower ratings and an ongoing revolt over excessive programming costs by dozens of its 349 member stations, the Public Broadcasting System is in one of the worst crises of its history. The highly touted signature series "American Family" will not be renewed, and other shows familiar to viewers are in jeopardy as the noncommercial network deals with the reality of a shrinking budget. The PBS board is expected to meet as...