Canelo Alvarez ko'ing Carlos Baldomir was a good one. I think it was on the undercard of a crap mosley/mora fight. Gamboa was on the undercard this time around. Daniel ponce de Leon fights on the undercard a lot, as has Jorge Arce. I also saw Alfredo Anguelo on the undercard of Arreola/Adamak. As to true newbies, shobox has some decent fights on a fairly regular basis. It's true that some fighters are brought along slowly but there are good fights out there. The reason you don't see them on the main event undercards all the time is that the network well usually only air the three or four top fights, and there is generally more television interest in fighters that folks have heard of and who might have or used to have titles. I know squat about mma, but if you don't think there are good undercard fights out there you aren't looking in the right places. Go see a couple of fights live if you can, much better experience in my opinion.