My first real exposure to the sport was UFC 129. I watched the PPV at a friend's house when I was in... 8th grade, I think. His family were big fans. We ate pizza and shot the shit. I don't recall the main event or even most of the fights at all for that matter. I do vividly remember Nate Diaz getting taken to Suplex City by Rory, which I thought was cool as fuck. I didn't know much about the sport, but my friend and his family all hated the Diaz brothers and were excited to see him take such a beating. Other than that, I also recall Randy getting his tooth kicked out by Lyoto and retiring. Other than that... nothing. I thought it was cool as a kid and it left an impression, but it didn't really make a fan of me then.
Over the next several years, I would catch bits of fights here and there while channel-flipping. I remember watching Jones fight Rampage and being a "fan" of his due to his varied and unorthodox fighting style. Pretty sure I also saw him fight Rashad. I remember my brother and I watching Clay Guida fight... someone. Don't even know, we were just laughing at this weirdo with long hair who was in constant motion around the cage and tossing his head yet never seemed to get tired.
I also saw Tim Kennedy's sprawl-n-brawl affair against Roger Gracie when I was slightly more knowledgeable about fighting just due to learning about it from other sources. Likewise, I followed Tim outside of his UFC career so that was neat to happen upon.
I didn't watch another PPV until Rousey vs. Zingano. My family and I got swept up partially into the Rousey craze. My best friend (different one) was hanging at my house that night and on a whim we decided to order the PPV. I remember all of them complaining about how many prelim and undercard bouts there were and how late you had to stay up to see the Main Event... which ended up ending in seconds lmao.
Even though I fancied myself a "fan" of Rousey, Jon, Kennedy, etc. I wasn't really worthy of the title as I hardly followed the sport. Barely even a casual tbh. After Jon's legal troubles and Rousey's loss, I didn't give the UFC a second thought until 2018.
I was doing some research on karate and kickboxing one day for some fiction I was writing when at the bottom of the Wikipedia page under Notable Practitioners it said: "Stephen Thompson (UFC Fighter)" or something to that effect. Curious, I followed the link and read his article. I found Wonderboy and his martial arts background incredibly intriguing, especially how he made it work at such a high level and yet I'd never heard of him. And look here, he had a fight coming up against some undefeated British guy... maybe I should tune in...
I watched the Thompson/Till Fight Night card bottom to top. The Prelim bout was, as I recall, a surprisingly scrappy exchange between Gillian Robertson and an overweight Meatball McCann with lots of fun wrestling scrambles and grappling exchanges that ended with Gil tapping Molly with an RNC in Round 2. I was hooked immediately and my family got into it as well for the first time since the Ronda PPV (including my middle-aged mother). Shame the Main Event was a bit of a bore.
From that point on kind of became a bit of a weekly ritual/bonding thing for us all after a week of work: sitting around the TV, chilling, and watching the fights. They're less into it lately, though. Since 2018 I have missed very few bouts and I've progressively been educating myself on old events and the sport outside the cage and/or the UFC.