There are some old re-runs that air with not much interuption and all the techniques shown. The newer episodes were prodecued with Zuffa's interests in mind, ie: Liddel-Rampage 1 before the UFC bout, Ramapge HL and Hendo HL. These and other Pride FC episodes were produced because there are still contractual obligations by FSN for commercial distribution, however they now answer to Zuffa, not Dreamworks Ent. They (Zuffa) still hasn't announced if it will continue to licence the Pride FC show. Also, since the product is theirs, they can at any time go back to showing the full fights (I highly doubt it).
As for documentation, I don't have anything concrete, but I work for Fox Television Stations in NYC.