UFC 129 features not one but two title fights: Georges St. Pierre vs Jake Shields for the welterweight belt and Jose Aldo vs Mark Hominick for the featherweight title. Former champs Randy Couture and Lyoto Machida square off as do Mark Bocek vs Ben Henderson and Vladimir Matyushenko vs Jason Brilz.
All of those fights will be on the main Pay Per View card starting at 9 p.m. ET. I highly recommend ordering the HD version on SBN sponsor Comcast if you're in a Comcast region. The Yahoo PPV stream is an alternative if you don't have a cable provider or are outside the USA. UFC.tv features multiple camera angles, multiple audio feeds, real-time DVR controls and a whole bunch of other stuff I haven't had the chance to try out.
And if that's not enough, the entire undercard will be streamed for free on the UFC's Facebook page starting at 6 p.m. ET. Those fights include: Claude Patrick vs Daniel Roberts, Ivan Menjivar vs Charlie Valencia, Jason McDonald vs Ryan Jensen, John Makdessi vs Kyle Watson, and Yves Jabouin vs Pablo Garza.