I hate watchin UFC on spike... soooooo many commercials, even between rounds they get 1 in there, I like hearing the corners, makes me feel more engaged in the fight. Anyways, the last few pay per views have showed like 1 prelim fight after the main event, but the one was like a 30 second KO. But if you ever want to watch all the fights, go to this site, it's awesome.
Ultimate MMA Video Blog