Attention TV Shoppers

& Home shopping, the ultimate in couch-potato marketing, seemed, at its cable- TV debut a decade ago, to be the natural successor to the shopping mall. But years of selling such schlock as silver bracelets and cubic-zirconia rings, plus a series of scandals, mired the medium at the low end of the retail business, even as it grew to gross about $2.2 billion a year. Recently, though, home shopping has spiffed up its image, thanks in part to media mogul Barry Diller. Since joining QVC as chairman six months ago, Diller has buffed the industry's reputation by luring Saks Fifth Avenue...