Original sentence: Instead, on or before June 12, 2009, which is the end of the digital TV conversion period for full-service stations, KUPB will be required to turn off its analog signal and turn on its digital signal (called a "flash-cut").Noticias 18 was launched on November 5, 2007 to  provide news for the viewers in the Permian Basin
Edited sentence: Instead, on June 12, 2009, which was the end of the digital TV conversion period for full-service stations, KUPB turned off its analog signal and turn on its digital signal (called a "flash-cut").KUPB was off-air for 3 minutes.Noticias 18 was launched on November 5, 2007 to  provide news for the viewers in the Permian Basin (North America).On October 13, 2008, the name of the newscast was changed to Noticias Oeste de Texas.The flash cut occurred at 9:00am central daylight savings time