UFC is not on PPV in the UK, it's on a cable channel (BRAVO). The viewing figures are apparently quite good but I don't have more specific figures.
Cage Rage and CageWarriors consistenly bring in crowds of over 2000, WCFC recently brought in a crowd of between 4000 and 5000
Cage Rage and Cagewarriors both have TV shows, Cage Rage's show is a highlight of each event shown a few days after the event on Sky Sports (one of the major cable sports channels)
CageWarriors has a weekly show on a smaller less well known cable channel called TWC (The Wrestling Channel) the viewing figures were high enough that TWC gave them a bigger, better time spot. This show has so far been CW shows only (I think) but they also plan on doing a 'CageWarriors presents' series where they'll show other shows (UK and Worldwide)
Hope this helps