Early estimates are that UFC 100 did 1.5 million buys on PPV, blowing away the record set for "legit" fighting sports on PPV (boxing and MMA, not pro wrestling).
Yesterday (Monday) was hilarious for my local sports talk hosts (Kenny Roda, Rizzo and Munch) as all three guys wanted to talk about the "inhuman brutality" of UFC or ignore it alltogether but all the callers wanted to talk about how awesome the Dan Henderson and Lesner-Mir fights were so the hosts were forced to humor them and go on wikipedia and educate themselves about Seth Petruzelli, Tom Lawlor, Bisping, Mirko "Cro Cop" Filipovic, etc.
I wasn't able to listen myself, obviously, but word is that Petros & Money and WEEI were both inundated with pro-UFC callers all day, which especially drove Glen Ordway nuts.
Another example of "old" sports talk hosts (Tim Brando, Dan Moriarty, John Seibal, Ryan Rusillo, etc.) refusing to adapt and adjust to changing fads and interests and thus being surpassed by more adaptable hosts.
As much as I personally hate Colin Cowherd and wish him nothing but failure in life, I at least applaud him for recognizing that UFC is "hot" and educating himself about it and embracing it.