地方广电集团下电视购物频道发展风险规避浅探——以四川星空电视购物为例地方廣電集糰下電視購物頻道髮展風險規避淺探——以四川星空電視購物為例 지방엄전집단하전시구물빈도발전풍험규피천탐——이사천성공전시구물위례 On the Avoidance of Risks in the Development of TV Shopping Channels of Local Broadcasting and TV Groups——Taking Sichuan Xingkong TV Shopping for instance