With all the hype i'll have to watch this show.. probably bulk viewing.
I did the same with 'Breaking Bad' which I put on the back burner two series in before I watched any, from the beginning obviously.
Alba, I had series one and half of series two sat on my PC. Bro had put them on USB for me... and I didn't get around to watching them. On the plus side not so long to wait for the next series when I'd caught up... I became a bit of a junkie ;-)
There was such a lot going on in series 3 that I found it really helpful to read this recap before starting series 4. Obviously it contains series 3 spoilers so don't read if you intend watching that series for the first time