 That year, Univision increased its advertising rates and was able to increase its cash flow, which allowed to go on to a purchase mode, acquiring KXLN, the first Spanish-language television station in the Houston market.Perenchio also invested $37 million, in conjunction with rival Telemundo, to develop the National Hispanic Television Index, a ratings system created by A.C. Nielsen to track viewership of Spanish language television networks.Perenchio also implemented new programming requirements in which non-sports programs were no longer allowed to run 20 minutes over their allotted timeslot.