You are being screwed. Cable companies are starting to tier data for two reasons:
1. The amount of traffic is going up (duh)
2. More people are cutting the cable-tv cord and using Netflix, Hulu, Amazon Prime, torrents, etc
Here in the US, the cable companies are little better than government sanctioned monopolies and they do what they can (lobby lobby lobby) to make sure that they are allowed to stifle municipal competition and force you to rent hardware from them.
The only thing I can recommend is to find a friend in your same boat and coordinate your downloads. You get one set of shows and they get a different set.
The $30-$40 a month you save will buy a lot of flash sticks or writable optical media.
Read on another forum: "If someone held a gun to my head and said, "You have to move to Salida tomorrow", I'd probably do it. If they told me I had to go to Breckenridge instead, I think I'd just let them pull the trigger."