Sports programming on the American Broadcasting Company is provided on occasion, primarily on weekend afternoons; since 2006, the ABC Sports division has been defunct, with all sports telecasts on ABC being produced in association with sister cable network ESPN under the branding ESPN on ABC. While ABC has, in the past, aired notable sporting events such as the NFL's Monday Night Football, and various college football bowl games (including, most prominently for a period, the Bowl Championship Series), general industry trends and changes in rights have prompted reductions in sports broadcasts on broadcast television (the BCS's successor, the College Football Playoff and national championship, air exclusively on ESPN).