Acorn TV

Some episodes of shows offered by Acorn are still not available through Cox Contour.  For example, the show London Kills only offers one episode from Season 1, episode 3 and three episodes from Season 2, episodes 2, 3 & 4.  Why does this happen?  Other episodes from some shows are free through my Acorn subscription but some of the episodes it says you have to pay $2.99.

I would not have purchased Acorn through Cox if I knew it was going to be this big of a hassle.  Can this be rectified?