sentences:  Since 2012, the Horned Frogs have been a member of the Big 12 Conference, and were previously members of the Mountain West Conference (MWC), Western Athletic Conference (WAC), Conference USA (C-USA), Southwest Conference (SWC), and Texas Intercollegiate Athletic Association (TIAA).TCU began playing football in 1896 and claims national championships in 1935 and 1938.TCU has one Heisman Trophy winner, Davey O'Brien, and has had eight former players inducted into the College Football Hall of Fame.