"She said Dish shares have been battered by a satellite launch failure, the loss of an AT&T contract and a lawsuit over patents held buy TiVo Inc. ''If any one of these issues reverses, the share price could move upward,'' she told clients in a note. Chung also said Dish shares could gain if the company moves to more aggressively buy back shares after paying off $1.5 billion in debt last fall. Englewood, Colo.-based Dish Network may have to pay TiVo damages for distributing digital video recorders that TiVo says infringe on its software patents. A hearing in the case is scheduled for Feb. 17."