Donald Trump will host "Saturday Night Live" ... and the big winner is NBC.
Trump will front SNL on November 7th ... which NOT coincidentally is smack in the middle of sweeps.
Trump has been a ratings magnet ... CNN got its best rating in history during the second Republican Presidential Debate ... thanks to D.T. And even the struggling "Meet the Press" attracted 3.6 million viewers in August thanks to The Donald.
Trump is not a novice on the 'SNL' front. He hosted in 2004.