FORT WORTH, Texas (AP) – TCU is looking for another perfect ending in the Mountain West Conference.  The 18th-ranked Horned Frogs (9-2, 6-0 MWC) can clinch their third consecutive unblemished league title with a win Saturday at home over UNLV. They have won a record 23 consecutive Mountain West games since November 2008.  This will be TCU’s final Mountain West game before moving to the Big 12 next season.  TCU is a nearly six-touchdown favorite at home to win the regular season finale against UNLV (2-9, 1-5). The Rebels have lost four in a row, and seven of eight.  The Frogs have a six-game winning streak, the biggest being a 36-35 victory at Boise State three weeks ago.