The queen of daytime talk will relinquish her network television throne Wednesday to oversee the rest of her sprawling kingdom, which has extended its reach to film, Broadway, publishing, politics, cooking, fitness, the self-help industry, a fledgling cable channel and the throbbing crannies of America’s heart. “The Oprah Winfrey Show,” one of the most durable and top-rated programs in TV history, is ending its quarter-century run with fanfare worthy of a president or pope — or of a woman born into poverty in Mississippi who built a media empire around her own nationally syndicated talk show. Read full article >>