But fight-loving viewers have been gravitating toward MMA fights, put on by companies including Ultimate Fighting Championship.

WSJ: Say Goodbye to Boxing Judges

Additional cash is made from ticket sales to live fights and licensing fees from its Spike cable shows The Ultimate Fighter and UFC Fight Night.

FORBES: Magazine Article

The proposal to sanction mix-martial arts fights still faces opposition from unions, due to an unrelated labor dispute in Nevada with the owners of Ultimate Fighting Championship, the sport's largest promoter.

WSJ: Mixed-Martial Arts Wins Political Support in N.Y., Conn.