A TV show I bought's episodes don't come up as part of a series in iTunes

I bought the series 3 and 4 package of Being Human, and I think that's the problem.

When I look at the episodes in iTunes, they are under the section "No Season".

I went into the episode info and changed it so the episodes were in series 3 or 4 whichever one they are in.

This did not do anything.