Tito Ortiz vs. Randy Couture at UFC 44 (a LHW title unification fight; this is where my addiction to title unification fights began, which is an addiction I thoroughly enjoy!), as well as Tito Ortiz vs. Chuck Liddell at UFC 47. I remember my uncle showing me either the VHS or DVD of that around or before the beginning of when TUF Season 1 began airing.
Both had me in awe, both had defining moments, both were incredible fights, both made me fans of a fighter (Randy and then Chuck), both made me want a Randy vs. Chuck fight even though they had just fought (I got 3 on DVD!), and both made me want more of the sport.
But yeah, those two events (specifically the main events) plus TUF Season 1 (and 2, 3, and 4), and those TUF Finales and UFC Fight Nights made me more of a fan.
Despite all that, I think the epic Hendo vs. Rampage match made me a 100% committed MMA fan (again, I love me some title unification fights!). After that fight I couldn't get enough of MMA or the UFC, and since then, I've bought so many UFC and MMA events on PPV, DVD, and Blu-Ray. I've been a happy MMA for life ever since then.
