Dish Network said on Wednesday it will close all 300 or so retail locations of the Blockbuster video rental chain by January, closing a chapter on a brand that failed to compete in the digital world. Dish plans to lay off as many as 2,800 employees. Dish, the second-largest U.S. satellite TV company, bought the failed Blockbuster LLC video rental chain in a bankruptcy auction in 2011 for $320 million, a dramatic fall for a brand that at its peak in 2002 had a market value of $5 billion.