Thirty percent of ad buyers expect to reduce their budgets in broadcast television over the next six months, while 14 percent expect to increase them, according to a survey by market-research firm Advertising Perceptions and reported today (Monday) by Advertising Age. However, in the case of cable TV, 28 percent of buyers said that they intend to increase their ad budgets, while 20 percent said they intend to reduce them. While the survey results "can hardly come as a shock," AdAge commented, "it's far from welcome news for a shaky media economy teetering into the second half."