 Wrestlers assigned to the ECW brand wrestled predominately on the "ECW" television program and ECW branded or co-branded pay-per-view events.From 2007 to 2009, ECW wrestlers occasionally appeared on the "Raw" and "SmackDown" television programs due to talent exchange agreements between the brands.In early-to-mid-2002, then World Wrestling Federation (WWF) underwent a process they called the "brand extension".