Usually the episodes are uploaded onto here -
http://www.pokerstars.tv/channels/pca/ - once they have been shown on TV. I see that the 3 episodes of the Super High Roller are on there but the Main Event episodes are not. Therefore, I expect that there is just a break and they will be on eventually.
That's just my guess though. Cue the boss James Hartigan coming into this thread to give you the actual answer.